options.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5 #include <string.h>
   6 #include <assert.h>
   7 #include <fcntl.h>
   8 #include <sys/stat.h>
   9 #include <netinet/in.h>
  10
  11 #include "fio.h"
  12 #include "verify.h"
  13 #include "parse.h"
  14 #include "lib/pattern.h"
  15 #include "options.h"
  16 #include "optgroup.h"
  17 #include "zbd.h"
  18
  19 char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
  20
  21 #define cb_data_to_td(data)     container_of(data, struct thread_data, o)
  22
  23 static const struct pattern_fmt_desc fmt_desc[] = {
  24         {
  25                 .fmt   = "%o",
  26                 .len   = FIO_FIELD_SIZE(struct io_u *, offset),
  27                 .paste = paste_blockoff
  28         },
  29         { }
  30 };
  31
  32 /*
  33  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
  34  */
  35 static char *get_opt_postfix(const char *str)
  36 {
  37         char *p = strstr(str, ":");
  38
  39         if (!p)
  40                 return NULL;
  41
  42         p++;
  43         strip_blank_front(&p);
  44         strip_blank_end(p);
  45         return strdup(p);
  46 }
  47
  48 static bool split_parse_distr(const char *str, double *val, double *center)
  49 {
  50         char *cp, *p;
  51         bool r;
  52
  53         p = strdup(str);
  54         if (!p)
  55                 return false;
  56
  57         cp = strstr(p, ":");
  58         r = true;
  59         if (cp) {
  60                 *cp = '\0';
  61                 cp++;
  62                 r = str_to_float(cp, center, 0);
  63         }
  64         r = r && str_to_float(p, val, 0);
  65         free(p);
  66         return r;
  67 }
  68
  69 static int bs_cmp(const void *p1, const void *p2)
  70 {
  71         const struct bssplit *bsp1 = p1;
  72         const struct bssplit *bsp2 = p2;
  73
  74         return (int) bsp1->perc - (int) bsp2->perc;
  75 }
  76
  77 int split_parse_ddir(struct thread_options *o, struct split *split,
  78                             char *str, bool absolute, unsigned int max_splits)
  79 {
  80         unsigned long long perc;
  81         unsigned int i;
  82         long long val;
  83         char *fname;
  84
  85         split->nr = 0;
  86
  87         i = 0;
  88         while ((fname = strsep(&str, ":")) != NULL) {
  89                 char *perc_str;
  90
  91                 if (!strlen(fname))
  92                         break;
  93
  94                 perc_str = strstr(fname, "/");
  95                 if (perc_str) {
  96                         *perc_str = '\0';
  97                         perc_str++;
  98                         if (absolute) {
  99                                 if (str_to_decimal(perc_str, &val, 1, o, 0, 0)) {
 100                                         log_err("fio: split conversion failed\n");
 101                                         return 1;
 102                                 }
 103                                 perc = val;
 104                         } else {
 105                                 perc = atoi(perc_str);
 106                                 if (perc > 100)
 107                                         perc = 100;
 108                                 else if (!perc)
 109                                         perc = -1U;
 110                         }
 111                 } else {
 112                         if (absolute)
 113                                 perc = 0;
 114                         else
 115                                 perc = -1U;
 116                 }
 117
 118                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
 119                         log_err("fio: split conversion failed\n");
 120                         return 1;
 121                 }
 122
 123                 split->val1[i] = val;
 124                 split->val2[i] = perc;
 125                 i++;
 126                 if (i == max_splits) {
 127                         log_err("fio: hit max of %d split entries\n", i);
 128                         break;
 129                 }
 130         }
 131
 132         split->nr = i;
 133         return 0;
 134 }
 135
 136 static int bssplit_ddir(struct thread_options *o, void *eo,
 137                         enum fio_ddir ddir, char *str, bool data)
 138 {
 139         unsigned int i, perc, perc_missing;
 140         unsigned long long max_bs, min_bs;
 141         struct split split;
 142
 143         memset(&split, 0, sizeof(split));
 144
 145         if (split_parse_ddir(o, &split, str, data, BSSPLIT_MAX))
 146                 return 1;
 147         if (!split.nr)
 148                 return 0;
 149
 150         max_bs = 0;
 151         min_bs = -1;
 152         o->bssplit[ddir] = malloc(split.nr * sizeof(struct bssplit));
 153         o->bssplit_nr[ddir] = split.nr;
 154         for (i = 0; i < split.nr; i++) {
 155                 if (split.val1[i] > max_bs)
 156                         max_bs = split.val1[i];
 157                 if (split.val1[i] < min_bs)
 158                         min_bs = split.val1[i];
 159
 160                 o->bssplit[ddir][i].bs = split.val1[i];
 161                 o->bssplit[ddir][i].perc =split.val2[i];
 162         }
 163
 164         /*
 165          * Now check if the percentages add up, and how much is missing
 166          */
 167         perc = perc_missing = 0;
 168         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 169                 struct bssplit *bsp = &o->bssplit[ddir][i];
 170
 171                 if (bsp->perc == -1U)
 172                         perc_missing++;
 173                 else
 174                         perc += bsp->perc;
 175         }
 176
 177         if (perc > 100 && perc_missing > 1) {
 178                 log_err("fio: bssplit percentages add to more than 100%%\n");
 179                 free(o->bssplit[ddir]);
 180                 o->bssplit[ddir] = NULL;
 181                 return 1;
 182         }
 183
 184         /*
 185          * If values didn't have a percentage set, divide the remains between
 186          * them.
 187          */
 188         if (perc_missing) {
 189                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
 190                         perc = 100;
 191                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
 192                         struct bssplit *bsp = &o->bssplit[ddir][i];
 193
 194                         if (bsp->perc == -1U)
 195                                 bsp->perc = (100 - perc) / perc_missing;
 196                 }
 197         }
 198
 199         o->min_bs[ddir] = min_bs;
 200         o->max_bs[ddir] = max_bs;
 201
 202         /*
 203          * now sort based on percentages, for ease of lookup
 204          */
 205         qsort(o->bssplit[ddir], o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
 206         return 0;
 207 }
 208
 209 int str_split_parse(struct thread_data *td, char *str,
 210                     split_parse_fn *fn, void *eo, bool data)
 211 {
 212         char *odir, *ddir;
 213         int ret = 0;
 214
 215         odir = strchr(str, ',');
 216         if (odir) {
 217                 ddir = strchr(odir + 1, ',');
 218                 if (ddir) {
 219                         ret = fn(&td->o, eo, DDIR_TRIM, ddir + 1, data);
 220                         if (!ret)
 221                                 *ddir = '\0';
 222                 } else {
 223                         char *op;
 224
 225                         op = strdup(odir + 1);
 226                         ret = fn(&td->o, eo, DDIR_TRIM, op, data);
 227
 228                         free(op);
 229                 }
 230                 if (!ret)
 231                         ret = fn(&td->o, eo, DDIR_WRITE, odir + 1, data);
 232                 if (!ret) {
 233                         *odir = '\0';
 234                         ret = fn(&td->o, eo, DDIR_READ, str, data);
 235                 }
 236         } else {
 237                 char *op;
 238
 239                 op = strdup(str);
 240                 ret = fn(&td->o, eo, DDIR_WRITE, op, data);
 241                 free(op);
 242
 243                 if (!ret) {
 244                         op = strdup(str);
 245                         ret = fn(&td->o, eo, DDIR_TRIM, op, data);
 246                         free(op);
 247                 }
 248                 if (!ret)
 249                         ret = fn(&td->o, eo, DDIR_READ, str, data);
 250         }
 251
 252         return ret;
 253 }
 254
 255 static int fio_fdp_cmp(const void *p1, const void *p2)
 256 {
 257         const uint16_t *t1 = p1;
 258         const uint16_t *t2 = p2;
 259
 260         return *t1 - *t2;
 261 }
 262
 263 static int str_fdp_pli_cb(void *data, const char *input)
 264 {
 265         struct thread_data *td = cb_data_to_td(data);
 266         char *str, *p, *v;
 267         int i = 0;
 268
 269         p = str = strdup(input);
 270         strip_blank_front(&str);
 271         strip_blank_end(str);
 272
 273         while ((v = strsep(&str, ",")) != NULL && i < FIO_MAX_PLIS)
 274                 td->o.fdp_plis[i++] = strtoll(v, NULL, 0);
 275         free(p);
 276
 277         qsort(td->o.fdp_plis, i, sizeof(*td->o.fdp_plis), fio_fdp_cmp);
 278         td->o.fdp_nrpli = i;
 279
 280         return 0;
 281 }
 282
 283 static int str_bssplit_cb(void *data, const char *input)
 284 {
 285         struct thread_data *td = cb_data_to_td(data);
 286         char *str, *p;
 287         int ret = 0;
 288
 289         p = str = strdup(input);
 290
 291         strip_blank_front(&str);
 292         strip_blank_end(str);
 293
 294         ret = str_split_parse(td, str, bssplit_ddir, NULL, false);
 295
 296         if (parse_dryrun()) {
 297                 int i;
 298
 299                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 300                         free(td->o.bssplit[i]);
 301                         td->o.bssplit[i] = NULL;
 302                         td->o.bssplit_nr[i] = 0;
 303                 }
 304         }
 305
 306         free(p);
 307         return ret;
 308 }
 309
 310 static int parse_cmdprio_bssplit_entry(struct thread_options *o,
 311                                        struct split_prio *entry, char *str)
 312 {
 313         int matches = 0;
 314         char *bs_str = NULL;
 315         long long bs_val;
 316         unsigned int perc = 0, class, level, hint;
 317
 318         /*
 319          * valid entry formats:
 320          * bs/ - %s/ - set perc to 0, prio to -1.
 321          * bs/perc - %s/%u - set prio to -1.
 322          * bs/perc/class/level - %s/%u/%u/%u
 323          * bs/perc/class/level/hint - %s/%u/%u/%u/%u
 324          */
 325         matches = sscanf(str, "%m[^/]/%u/%u/%u/%u",
 326                          &bs_str, &perc, &class, &level, &hint);
 327         if (matches < 1) {
 328                 log_err("fio: invalid cmdprio_bssplit format\n");
 329                 return 1;
 330         }
 331
 332         if (str_to_decimal(bs_str, &bs_val, 1, o, 0, 0)) {
 333                 log_err("fio: split conversion failed\n");
 334                 free(bs_str);
 335                 return 1;
 336         }
 337         free(bs_str);
 338
 339         entry->bs = bs_val;
 340         entry->perc = min(perc, 100u);
 341         entry->prio = -1;
 342         switch (matches) {
 343         case 1: /* bs/ case */
 344         case 2: /* bs/perc case */
 345                 break;
 346         case 4: /* bs/perc/class/level case */
 347         case 5: /* bs/perc/class/level/hint case */
 348                 class = min(class, (unsigned int) IOPRIO_MAX_PRIO_CLASS);
 349                 level = min(level, (unsigned int) IOPRIO_MAX_PRIO);
 350                 if (matches == 5)
 351                         hint = min(hint, (unsigned int) IOPRIO_MAX_PRIO_HINT);
 352                 else
 353                         hint = 0;
 354                 entry->prio = ioprio_value(class, level, hint);
 355                 break;
 356         default:
 357                 log_err("fio: invalid cmdprio_bssplit format\n");
 358                 return 1;
 359         }
 360
 361         return 0;
 362 }
 363
 364 /*
 365  * Returns a negative integer if the first argument should be before the second
 366  * argument in the sorted list. A positive integer if the first argument should
 367  * be after the second argument in the sorted list. A zero if they are equal.
 368  */
 369 static int fio_split_prio_cmp(const void *p1, const void *p2)
 370 {
 371         const struct split_prio *tmp1 = p1;
 372         const struct split_prio *tmp2 = p2;
 373
 374         if (tmp1->bs > tmp2->bs)
 375                 return 1;
 376         if (tmp1->bs < tmp2->bs)
 377                 return -1;
 378         return 0;
 379 }
 380
 381 int split_parse_prio_ddir(struct thread_options *o, struct split_prio **entries,
 382                           int *nr_entries, char *str)
 383 {
 384         struct split_prio *tmp_entries;
 385         unsigned int nr_bssplits;
 386         char *str_cpy, *p, *fname;
 387
 388         /* strsep modifies the string, dup it so that we can use strsep twice */
 389         p = str_cpy = strdup(str);
 390         if (!p)
 391                 return 1;
 392
 393         nr_bssplits = 0;
 394         while ((fname = strsep(&str_cpy, ":")) != NULL) {
 395                 if (!strlen(fname))
 396                         break;
 397                 nr_bssplits++;
 398         }
 399         free(p);
 400
 401         if (nr_bssplits > BSSPLIT_MAX) {
 402                 log_err("fio: too many cmdprio_bssplit entries\n");
 403                 return 1;
 404         }
 405
 406         tmp_entries = calloc(nr_bssplits, sizeof(*tmp_entries));
 407         if (!tmp_entries)
 408                 return 1;
 409
 410         nr_bssplits = 0;
 411         while ((fname = strsep(&str, ":")) != NULL) {
 412                 struct split_prio *entry;
 413
 414                 if (!strlen(fname))
 415                         break;
 416
 417                 entry = &tmp_entries[nr_bssplits];
 418
 419                 if (parse_cmdprio_bssplit_entry(o, entry, fname)) {
 420                         log_err("fio: failed to parse cmdprio_bssplit entry\n");
 421                         free(tmp_entries);
 422                         return 1;
 423                 }
 424
 425                 /* skip zero perc entries, they provide no useful information */
 426                 if (entry->perc)
 427                         nr_bssplits++;
 428         }
 429
 430         qsort(tmp_entries, nr_bssplits, sizeof(*tmp_entries),
 431               fio_split_prio_cmp);
 432
 433         *entries = tmp_entries;
 434         *nr_entries = nr_bssplits;
 435
 436         return 0;
 437 }
 438
 439 static int str2error(char *str)
 440 {
 441         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
 442                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
 443                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
 444                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
 445                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
 446                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
 447                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
 448                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
 449         int i = 0, num = sizeof(err) / sizeof(char *);
 450
 451         while (i < num) {
 452                 if (!strcmp(err[i], str))
 453                         return i + 1;
 454                 i++;
 455         }
 456         return 0;
 457 }
 458
 459 static int ignore_error_type(struct thread_data *td, enum error_type_bit etype,
 460                                 char *str)
 461 {
 462         unsigned int i;
 463         int *error;
 464         char *fname;
 465
 466         if (etype >= ERROR_TYPE_CNT) {
 467                 log_err("Illegal error type\n");
 468                 return 1;
 469         }
 470
 471         td->o.ignore_error_nr[etype] = 4;
 472         error = calloc(4, sizeof(int));
 473
 474         i = 0;
 475         while ((fname = strsep(&str, ":")) != NULL) {
 476
 477                 if (!strlen(fname))
 478                         break;
 479
 480                 /*
 481                  * grow struct buffer, if needed
 482                  */
 483                 if (i == td->o.ignore_error_nr[etype]) {
 484                         td->o.ignore_error_nr[etype] <<= 1;
 485                         error = realloc(error, td->o.ignore_error_nr[etype]
 486                                                   * sizeof(int));
 487                 }
 488                 if (fname[0] == 'E') {
 489                         error[i] = str2error(fname);
 490                 } else {
 491                         error[i] = atoi(fname);
 492                         if (error[i] < 0)
 493                                 error[i] = -error[i];
 494                 }
 495                 if (!error[i]) {
 496                         log_err("Unknown error %s, please use number value\n",
 497                                   fname);
 498                         td->o.ignore_error_nr[etype] = 0;
 499                         free(error);
 500                         return 1;
 501                 }
 502                 i++;
 503         }
 504         if (i) {
 505                 td->o.continue_on_error |= 1 << etype;
 506                 td->o.ignore_error_nr[etype] = i;
 507                 td->o.ignore_error[etype] = error;
 508         } else {
 509                 td->o.ignore_error_nr[etype] = 0;
 510                 free(error);
 511         }
 512
 513         return 0;
 514
 515 }
 516
 517 static int str_replay_skip_cb(void *data, const char *input)
 518 {
 519         struct thread_data *td = cb_data_to_td(data);
 520         char *str, *p, *n;
 521         int ret = 0;
 522
 523         if (parse_dryrun())
 524                 return 0;
 525
 526         p = str = strdup(input);
 527
 528         strip_blank_front(&str);
 529         strip_blank_end(str);
 530
 531         while (p) {
 532                 n = strchr(p, ',');
 533                 if (n)
 534                         *n++ = '\0';
 535                 if (!strcmp(p, "read"))
 536                         td->o.replay_skip |= 1u << DDIR_READ;
 537                 else if (!strcmp(p, "write"))
 538                         td->o.replay_skip |= 1u << DDIR_WRITE;
 539                 else if (!strcmp(p, "trim"))
 540                         td->o.replay_skip |= 1u << DDIR_TRIM;
 541                 else if (!strcmp(p, "sync"))
 542                         td->o.replay_skip |= 1u << DDIR_SYNC;
 543                 else {
 544                         log_err("Unknown skip type: %s\n", p);
 545                         ret = 1;
 546                         break;
 547                 }
 548                 p = n;
 549         }
 550         free(str);
 551         return ret;
 552 }
 553
 554 static int str_ignore_error_cb(void *data, const char *input)
 555 {
 556         struct thread_data *td = cb_data_to_td(data);
 557         char *str, *p, *n;
 558         int ret = 1;
 559         enum error_type_bit type = 0;
 560
 561         if (parse_dryrun())
 562                 return 0;
 563
 564         p = str = strdup(input);
 565
 566         strip_blank_front(&str);
 567         strip_blank_end(str);
 568
 569         while (p) {
 570                 n = strchr(p, ',');
 571                 if (n)
 572                         *n++ = '\0';
 573                 ret = ignore_error_type(td, type, p);
 574                 if (ret)
 575                         break;
 576                 p = n;
 577                 type++;
 578         }
 579         free(str);
 580         return ret;
 581 }
 582
 583 static int str_rw_cb(void *data, const char *str)
 584 {
 585         struct thread_data *td = cb_data_to_td(data);
 586         struct thread_options *o = &td->o;
 587         char *nr;
 588
 589         if (parse_dryrun())
 590                 return 0;
 591
 592         o->ddir_seq_nr = 1;
 593         o->ddir_seq_add = 0;
 594
 595         nr = get_opt_postfix(str);
 596         if (!nr)
 597                 return 0;
 598
 599         if (td_random(td)) {
 600                 long long val;
 601
 602                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 603                         log_err("fio: randrw postfix parsing failed\n");
 604                         free(nr);
 605                         return 1;
 606                 }
 607                 if ((val <= 0) || (val > UINT_MAX)) {
 608                         log_err("fio: randrw postfix parsing out of range\n");
 609                         free(nr);
 610                         return 1;
 611                 }
 612                 o->ddir_seq_nr = (unsigned int) val;
 613         } else {
 614                 long long val;
 615
 616                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
 617                         log_err("fio: rw postfix parsing failed\n");
 618                         free(nr);
 619                         return 1;
 620                 }
 621
 622                 o->ddir_seq_add = val;
 623         }
 624
 625         free(nr);
 626         return 0;
 627 }
 628
 629 static int str_mem_cb(void *data, const char *mem)
 630 {
 631         struct thread_data *td = cb_data_to_td(data);
 632
 633         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
 634             td->o.mem_type == MEM_MMAPSHARED)
 635                 td->o.mmapfile = get_opt_postfix(mem);
 636
 637         return 0;
 638 }
 639
 640 static int fio_clock_source_cb(void *data, const char *str)
 641 {
 642         struct thread_data *td = cb_data_to_td(data);
 643
 644         fio_clock_source = td->o.clocksource;
 645         fio_clock_source_set = 1;
 646         fio_clock_init();
 647         return 0;
 648 }
 649
 650 static int str_rwmix_read_cb(void *data, unsigned long long *val)
 651 {
 652         struct thread_data *td = cb_data_to_td(data);
 653
 654         td->o.rwmix[DDIR_READ] = *val;
 655         td->o.rwmix[DDIR_WRITE] = 100 - *val;
 656         return 0;
 657 }
 658
 659 static int str_rwmix_write_cb(void *data, unsigned long long *val)
 660 {
 661         struct thread_data *td = cb_data_to_td(data);
 662
 663         td->o.rwmix[DDIR_WRITE] = *val;
 664         td->o.rwmix[DDIR_READ] = 100 - *val;
 665         return 0;
 666 }
 667
 668 static int str_exitall_cb(void)
 669 {
 670         exitall_on_terminate = true;
 671         return 0;
 672 }
 673
 674 #ifdef FIO_HAVE_CPU_AFFINITY
 675 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
 676 {
 677         unsigned int i, index, cpus_in_mask;
 678         const long max_cpu = cpus_configured();
 679
 680         cpus_in_mask = fio_cpu_count(mask);
 681         if (!cpus_in_mask)
 682                 return 0;
 683
 684         cpu_index = cpu_index % cpus_in_mask;
 685
 686         index = 0;
 687         for (i = 0; i < max_cpu; i++) {
 688                 if (!fio_cpu_isset(mask, i))
 689                         continue;
 690
 691                 if (cpu_index != index)
 692                         fio_cpu_clear(mask, i);
 693
 694                 index++;
 695         }
 696
 697         return fio_cpu_count(mask);
 698 }
 699
 700 static int str_cpumask_cb(void *data, unsigned long long *val)
 701 {
 702         struct thread_data *td = cb_data_to_td(data);
 703         unsigned int i;
 704         long max_cpu;
 705         int ret;
 706
 707         if (parse_dryrun())
 708                 return 0;
 709
 710         ret = fio_cpuset_init(&td->o.cpumask);
 711         if (ret < 0) {
 712                 log_err("fio: cpuset_init failed\n");
 713                 td_verror(td, ret, "fio_cpuset_init");
 714                 return 1;
 715         }
 716
 717         max_cpu = cpus_configured();
 718
 719         for (i = 0; i < sizeof(int) * 8; i++) {
 720                 if ((1 << i) & *val) {
 721                         if (i >= max_cpu) {
 722                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
 723                                                                 max_cpu - 1);
 724                                 return 1;
 725                         }
 726                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
 727                         fio_cpu_set(&td->o.cpumask, i);
 728                 }
 729         }
 730
 731         return 0;
 732 }
 733
 734 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
 735                             const char *input)
 736 {
 737         char *cpu, *str, *p;
 738         long max_cpu;
 739         int ret = 0;
 740
 741         ret = fio_cpuset_init(mask);
 742         if (ret < 0) {
 743                 log_err("fio: cpuset_init failed\n");
 744                 td_verror(td, ret, "fio_cpuset_init");
 745                 return 1;
 746         }
 747
 748         p = str = strdup(input);
 749
 750         strip_blank_front(&str);
 751         strip_blank_end(str);
 752
 753         max_cpu = cpus_configured();
 754
 755         while ((cpu = strsep(&str, ",")) != NULL) {
 756                 char *str2, *cpu2;
 757                 int icpu, icpu2;
 758
 759                 if (!strlen(cpu))
 760                         break;
 761
 762                 str2 = cpu;
 763                 icpu2 = -1;
 764                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
 765                         if (!strlen(cpu2))
 766                                 break;
 767
 768                         icpu2 = atoi(cpu2);
 769                 }
 770
 771                 icpu = atoi(cpu);
 772                 if (icpu2 == -1)
 773                         icpu2 = icpu;
 774                 while (icpu <= icpu2) {
 775                         if (icpu >= FIO_MAX_CPUS) {
 776                                 log_err("fio: your OS only supports up to"
 777                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
 778                                 ret = 1;
 779                                 break;
 780                         }
 781                         if (icpu >= max_cpu) {
 782                                 log_err("fio: CPU %d too large (max=%ld)\n",
 783                                                         icpu, max_cpu - 1);
 784                                 ret = 1;
 785                                 break;
 786                         }
 787
 788                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
 789                         fio_cpu_set(mask, icpu);
 790                         icpu++;
 791                 }
 792                 if (ret)
 793                         break;
 794         }
 795
 796         free(p);
 797         return ret;
 798 }
 799
 800 static int str_cpus_allowed_cb(void *data, const char *input)
 801 {
 802         struct thread_data *td = cb_data_to_td(data);
 803
 804         if (parse_dryrun())
 805                 return 0;
 806
 807         return set_cpus_allowed(td, &td->o.cpumask, input);
 808 }
 809
 810 static int str_verify_cpus_allowed_cb(void *data, const char *input)
 811 {
 812         struct thread_data *td = cb_data_to_td(data);
 813
 814         if (parse_dryrun())
 815                 return 0;
 816
 817         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
 818 }
 819
 820 #ifdef CONFIG_ZLIB
 821 static int str_log_cpus_allowed_cb(void *data, const char *input)
 822 {
 823         struct thread_data *td = cb_data_to_td(data);
 824
 825         if (parse_dryrun())
 826                 return 0;
 827
 828         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
 829 }
 830 #endif /* CONFIG_ZLIB */
 831
 832 #endif /* FIO_HAVE_CPU_AFFINITY */
 833
 834 #ifdef CONFIG_LIBNUMA
 835 static int str_numa_cpunodes_cb(void *data, char *input)
 836 {
 837         struct thread_data *td = cb_data_to_td(data);
 838         struct bitmask *verify_bitmask;
 839
 840         if (parse_dryrun())
 841                 return 0;
 842
 843         /* numa_parse_nodestring() parses a character string list
 844          * of nodes into a bit mask. The bit mask is allocated by
 845          * numa_allocate_nodemask(), so it should be freed by
 846          * numa_free_nodemask().
 847          */
 848         verify_bitmask = numa_parse_nodestring(input);
 849         if (verify_bitmask == NULL) {
 850                 log_err("fio: numa_parse_nodestring failed\n");
 851                 td_verror(td, 1, "str_numa_cpunodes_cb");
 852                 return 1;
 853         }
 854         numa_free_nodemask(verify_bitmask);
 855
 856         td->o.numa_cpunodes = strdup(input);
 857         return 0;
 858 }
 859
 860 static int str_numa_mpol_cb(void *data, char *input)
 861 {
 862         struct thread_data *td = cb_data_to_td(data);
 863         const char * const policy_types[] =
 864                 { "default", "prefer", "bind", "interleave", "local", NULL };
 865         int i;
 866         char *nodelist;
 867         struct bitmask *verify_bitmask;
 868
 869         if (parse_dryrun())
 870                 return 0;
 871
 872         nodelist = strchr(input, ':');
 873         if (nodelist) {
 874                 /* NUL-terminate mode */
 875                 *nodelist++ = '\0';
 876         }
 877
 878         for (i = 0; i <= MPOL_LOCAL; i++) {
 879                 if (!strcmp(input, policy_types[i])) {
 880                         td->o.numa_mem_mode = i;
 881                         break;
 882                 }
 883         }
 884         if (i > MPOL_LOCAL) {
 885                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
 886                 goto out;
 887         }
 888
 889         switch (td->o.numa_mem_mode) {
 890         case MPOL_PREFERRED:
 891                 /*
 892                  * Insist on a nodelist of one node only
 893                  */
 894                 if (nodelist) {
 895                         char *rest = nodelist;
 896                         while (isdigit(*rest))
 897                                 rest++;
 898                         if (*rest) {
 899                                 log_err("fio: one node only for \'prefer\'\n");
 900                                 goto out;
 901                         }
 902                 } else {
 903                         log_err("fio: one node is needed for \'prefer\'\n");
 904                         goto out;
 905                 }
 906                 break;
 907         case MPOL_INTERLEAVE:
 908                 /*
 909                  * Default to online nodes with memory if no nodelist
 910                  */
 911                 if (!nodelist)
 912                         nodelist = strdup("all");
 913                 break;
 914         case MPOL_LOCAL:
 915         case MPOL_DEFAULT:
 916                 /*
 917                  * Don't allow a nodelist
 918                  */
 919                 if (nodelist) {
 920                         log_err("fio: NO nodelist for \'local\'\n");
 921                         goto out;
 922                 }
 923                 break;
 924         case MPOL_BIND:
 925                 /*
 926                  * Insist on a nodelist
 927                  */
 928                 if (!nodelist) {
 929                         log_err("fio: a nodelist is needed for \'bind\'\n");
 930                         goto out;
 931                 }
 932                 break;
 933         }
 934
 935
 936         /* numa_parse_nodestring() parses a character string list
 937          * of nodes into a bit mask. The bit mask is allocated by
 938          * numa_allocate_nodemask(), so it should be freed by
 939          * numa_free_nodemask().
 940          */
 941         switch (td->o.numa_mem_mode) {
 942         case MPOL_PREFERRED:
 943                 td->o.numa_mem_prefer_node = atoi(nodelist);
 944                 break;
 945         case MPOL_INTERLEAVE:
 946         case MPOL_BIND:
 947                 verify_bitmask = numa_parse_nodestring(nodelist);
 948                 if (verify_bitmask == NULL) {
 949                         log_err("fio: numa_parse_nodestring failed\n");
 950                         td_verror(td, 1, "str_numa_memnodes_cb");
 951                         return 1;
 952                 }
 953                 td->o.numa_memnodes = strdup(nodelist);
 954                 numa_free_nodemask(verify_bitmask);
 955
 956                 break;
 957         case MPOL_LOCAL:
 958         case MPOL_DEFAULT:
 959         default:
 960                 break;
 961         }
 962
 963         return 0;
 964 out:
 965         return 1;
 966 }
 967 #endif
 968
 969 static int str_fst_cb(void *data, const char *str)
 970 {
 971         struct thread_data *td = cb_data_to_td(data);
 972         double val;
 973         double center = -1;
 974         bool done = false;
 975         char *nr;
 976
 977         td->file_service_nr = 1;
 978
 979         switch (td->o.file_service_type) {
 980         case FIO_FSERVICE_RANDOM:
 981         case FIO_FSERVICE_RR:
 982         case FIO_FSERVICE_SEQ:
 983                 nr = get_opt_postfix(str);
 984                 if (nr) {
 985                         td->file_service_nr = atoi(nr);
 986                         free(nr);
 987                 }
 988                 done = true;
 989                 break;
 990         case FIO_FSERVICE_ZIPF:
 991                 val = FIO_DEF_ZIPF;
 992                 break;
 993         case FIO_FSERVICE_PARETO:
 994                 val = FIO_DEF_PARETO;
 995                 break;
 996         case FIO_FSERVICE_GAUSS:
 997                 val = 0.0;
 998                 break;
 999         default:
1000                 log_err("fio: bad file service type: %d\n", td->o.file_service_type);
1001                 return 1;
1002         }
1003
1004         if (done)
1005                 return 0;
1006
1007         nr = get_opt_postfix(str);
1008         if (nr && !split_parse_distr(nr, &val, &center)) {
1009                 log_err("fio: file service type random postfix parsing failed\n");
1010                 free(nr);
1011                 return 1;
1012         }
1013
1014         free(nr);
1015
1016         if (center != -1 && (center < 0.00 || center > 1.00)) {
1017                 log_err("fio: distribution center out of range (0 <= center <= 1.0)\n");
1018                 return 1;
1019         }
1020         td->random_center = center;
1021
1022         switch (td->o.file_service_type) {
1023         case FIO_FSERVICE_ZIPF:
1024                 if (val == 1.00) {
1025                         log_err("fio: zipf theta must be different than 1.0\n");
1026                         return 1;
1027                 }
1028                 if (parse_dryrun())
1029                         return 0;
1030                 td->zipf_theta = val;
1031                 break;
1032         case FIO_FSERVICE_PARETO:
1033                 if (val <= 0.00 || val >= 1.00) {
1034                           log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1035                           return 1;
1036                 }
1037                 if (parse_dryrun())
1038                         return 0;
1039                 td->pareto_h = val;
1040                 break;
1041         case FIO_FSERVICE_GAUSS:
1042                 if (val < 0.00 || val >= 100.00) {
1043                           log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1044                           return 1;
1045                 }
1046                 if (parse_dryrun())
1047                         return 0;
1048                 td->gauss_dev = val;
1049                 break;
1050         }
1051
1052         return 0;
1053 }
1054
1055 #ifdef CONFIG_SYNC_FILE_RANGE
1056 static int str_sfr_cb(void *data, const char *str)
1057 {
1058         struct thread_data *td = cb_data_to_td(data);
1059         char *nr = get_opt_postfix(str);
1060
1061         td->sync_file_range_nr = 1;
1062         if (nr) {
1063                 td->sync_file_range_nr = atoi(nr);
1064                 free(nr);
1065         }
1066
1067         return 0;
1068 }
1069 #endif
1070
1071 static int zone_split_ddir(struct thread_options *o, void *eo,
1072                            enum fio_ddir ddir, char *str, bool absolute)
1073 {
1074         unsigned int i, perc, perc_missing, sperc, sperc_missing;
1075         struct split split;
1076
1077         memset(&split, 0, sizeof(split));
1078
1079         if (split_parse_ddir(o, &split, str, absolute, ZONESPLIT_MAX))
1080                 return 1;
1081         if (!split.nr)
1082                 return 0;
1083
1084         o->zone_split[ddir] = malloc(split.nr * sizeof(struct zone_split));
1085         o->zone_split_nr[ddir] = split.nr;
1086         for (i = 0; i < split.nr; i++) {
1087                 o->zone_split[ddir][i].access_perc = split.val1[i];
1088                 if (absolute)
1089                         o->zone_split[ddir][i].size = split.val2[i];
1090                 else
1091                         o->zone_split[ddir][i].size_perc = split.val2[i];
1092         }
1093
1094         /*
1095          * Now check if the percentages add up, and how much is missing
1096          */
1097         perc = perc_missing = 0;
1098         sperc = sperc_missing = 0;
1099         for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1100                 struct zone_split *zsp = &o->zone_split[ddir][i];
1101
1102                 if (zsp->access_perc == (uint8_t) -1U)
1103                         perc_missing++;
1104                 else
1105                         perc += zsp->access_perc;
1106
1107                 if (!absolute) {
1108                         if (zsp->size_perc == (uint8_t) -1U)
1109                                 sperc_missing++;
1110                         else
1111                                 sperc += zsp->size_perc;
1112                 }
1113         }
1114
1115         if (perc > 100 || sperc > 100) {
1116                 log_err("fio: zone_split percentages add to more than 100%%\n");
1117                 free(o->zone_split[ddir]);
1118                 o->zone_split[ddir] = NULL;
1119                 return 1;
1120         }
1121         if (perc < 100) {
1122                 log_err("fio: access percentage don't add up to 100 for zoned "
1123                         "random distribution (got=%u)\n", perc);
1124                 free(o->zone_split[ddir]);
1125                 o->zone_split[ddir] = NULL;
1126                 return 1;
1127         }
1128
1129         /*
1130          * If values didn't have a percentage set, divide the remains between
1131          * them.
1132          */
1133         if (perc_missing) {
1134                 if (perc_missing == 1 && o->zone_split_nr[ddir] == 1)
1135                         perc = 100;
1136                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1137                         struct zone_split *zsp = &o->zone_split[ddir][i];
1138
1139                         if (zsp->access_perc == (uint8_t) -1U)
1140                                 zsp->access_perc = (100 - perc) / perc_missing;
1141                 }
1142         }
1143         if (sperc_missing) {
1144                 if (sperc_missing == 1 && o->zone_split_nr[ddir] == 1)
1145                         sperc = 100;
1146                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
1147                         struct zone_split *zsp = &o->zone_split[ddir][i];
1148
1149                         if (zsp->size_perc == (uint8_t) -1U)
1150                                 zsp->size_perc = (100 - sperc) / sperc_missing;
1151                 }
1152         }
1153
1154         return 0;
1155 }
1156
1157 static int parse_zoned_distribution(struct thread_data *td, const char *input,
1158                                     bool absolute)
1159 {
1160         const char *pre = absolute ? "zoned_abs:" : "zoned:";
1161         char *str, *p;
1162         int i, ret = 0;
1163
1164         p = str = strdup(input);
1165
1166         strip_blank_front(&str);
1167         strip_blank_end(str);
1168
1169         /* We expect it to start like that, bail if not */
1170         if (strncmp(str, pre, strlen(pre))) {
1171                 log_err("fio: mismatch in zoned input <%s>\n", str);
1172                 free(p);
1173                 return 1;
1174         }
1175         str += strlen(pre);
1176
1177         ret = str_split_parse(td, str, zone_split_ddir, NULL, absolute);
1178
1179         free(p);
1180
1181         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1182                 int j;
1183
1184                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
1185
1186                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
1187                         struct zone_split *zsp = &td->o.zone_split[i][j];
1188
1189                         if (absolute) {
1190                                 dprint(FD_PARSE, "\t%d: %u/%llu\n", j,
1191                                                 zsp->access_perc,
1192                                                 (unsigned long long) zsp->size);
1193                         } else {
1194                                 dprint(FD_PARSE, "\t%d: %u/%u\n", j,
1195                                                 zsp->access_perc,
1196                                                 zsp->size_perc);
1197                         }
1198                 }
1199         }
1200
1201         if (parse_dryrun()) {
1202                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1203                         free(td->o.zone_split[i]);
1204                         td->o.zone_split[i] = NULL;
1205                         td->o.zone_split_nr[i] = 0;
1206                 }
1207
1208                 return ret;
1209         }
1210
1211         if (ret) {
1212                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1213                         td->o.zone_split_nr[i] = 0;
1214         }
1215
1216         return ret;
1217 }
1218
1219 static int str_random_distribution_cb(void *data, const char *str)
1220 {
1221         struct thread_data *td = cb_data_to_td(data);
1222         double val;
1223         double center = -1;
1224         char *nr;
1225
1226         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1227                 val = FIO_DEF_ZIPF;
1228         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1229                 val = FIO_DEF_PARETO;
1230         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1231                 val = 0.0;
1232         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1233                 return parse_zoned_distribution(td, str, false);
1234         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1235                 return parse_zoned_distribution(td, str, true);
1236         else
1237                 return 0;
1238
1239         nr = get_opt_postfix(str);
1240         if (nr && !split_parse_distr(nr, &val, &center)) {
1241                 log_err("fio: random postfix parsing failed\n");
1242                 free(nr);
1243                 return 1;
1244         }
1245
1246         free(nr);
1247
1248         if (center != -1 && (center < 0.00 || center > 1.00)) {
1249                 log_err("fio: distribution center out of range (0 <= center <= 1.0)\n");
1250                 return 1;
1251         }
1252         td->o.random_center.u.f = center;
1253
1254         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1255                 if (val == 1.00) {
1256                         log_err("fio: zipf theta must different than 1.0\n");
1257                         return 1;
1258                 }
1259                 if (parse_dryrun())
1260                         return 0;
1261                 td->o.zipf_theta.u.f = val;
1262         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1263                 if (val <= 0.00 || val >= 1.00) {
1264                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1265                         return 1;
1266                 }
1267                 if (parse_dryrun())
1268                         return 0;
1269                 td->o.pareto_h.u.f = val;
1270         } else {
1271                 if (val < 0.00 || val >= 100.0) {
1272                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1273                         return 1;
1274                 }
1275                 if (parse_dryrun())
1276                         return 0;
1277                 td->o.gauss_dev.u.f = val;
1278         }
1279
1280         return 0;
1281 }
1282
1283 static int str_steadystate_cb(void *data, const char *str)
1284 {
1285         struct thread_data *td = cb_data_to_td(data);
1286         double val;
1287         char *nr;
1288         char *pct;
1289         long long ll;
1290
1291         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1292             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1293                 /* should be impossible to get here */
1294                 log_err("fio: unknown steady state criterion\n");
1295                 return 1;
1296         }
1297
1298         nr = get_opt_postfix(str);
1299         if (!nr) {
1300                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1301                 free(nr);
1302                 return 1;
1303         }
1304
1305         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1306         pct = strstr(nr, "%");
1307         if (pct) {
1308                 *pct = '\0';
1309                 strip_blank_end(nr);
1310                 if (!str_to_float(nr, &val, 0)) {
1311                         log_err("fio: could not parse steadystate threshold percentage\n");
1312                         free(nr);
1313                         return 1;
1314                 }
1315
1316                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1317                 free(nr);
1318                 if (parse_dryrun())
1319                         return 0;
1320
1321                 td->o.ss_state |= FIO_SS_PCT;
1322                 td->o.ss_limit.u.f = val;
1323         } else if (td->o.ss_state & FIO_SS_IOPS) {
1324                 if (!str_to_float(nr, &val, 0)) {
1325                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1326                         free(nr);
1327                         return 1;
1328                 }
1329
1330                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1331                 free(nr);
1332                 if (parse_dryrun())
1333                         return 0;
1334
1335                 td->o.ss_limit.u.f = val;
1336         } else {        /* bandwidth criterion */
1337                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1338                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1339                         free(nr);
1340                         return 1;
1341                 }
1342
1343                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1344                 free(nr);
1345                 if (parse_dryrun())
1346                         return 0;
1347
1348                 td->o.ss_limit.u.f = (double) ll;
1349         }
1350
1351         td->ss.state = td->o.ss_state;
1352         return 0;
1353 }
1354
1355 /*
1356  * Return next name in the string. Files are separated with ':'. If the ':'
1357  * is escaped with a '\', then that ':' is part of the filename and does not
1358  * indicate a new file.
1359  */
1360 char *get_next_str(char **ptr)
1361 {
1362         char *str = *ptr;
1363         char *p, *start;
1364
1365         if (!str || !strlen(str))
1366                 return NULL;
1367
1368         start = str;
1369         do {
1370                 /*
1371                  * No colon, we are done
1372                  */
1373                 p = strchr(str, ':');
1374                 if (!p) {
1375                         *ptr = NULL;
1376                         break;
1377                 }
1378
1379                 /*
1380                  * We got a colon, but it's the first character. Skip and
1381                  * continue
1382                  */
1383                 if (p == start) {
1384                         str = ++start;
1385                         continue;
1386                 }
1387
1388                 if (*(p - 1) != '\\') {
1389                         *p = '\0';
1390                         *ptr = p + 1;
1391                         break;
1392                 }
1393
1394                 memmove(p - 1, p, strlen(p) + 1);
1395                 str = p;
1396         } while (1);
1397
1398         return start;
1399 }
1400
1401
1402 int get_max_str_idx(char *input)
1403 {
1404         unsigned int cur_idx;
1405         char *str, *p;
1406
1407         p = str = strdup(input);
1408         for (cur_idx = 0; ; cur_idx++)
1409                 if (get_next_str(&str) == NULL)
1410                         break;
1411
1412         free(p);
1413         return cur_idx;
1414 }
1415
1416 /*
1417  * Returns the directory at the index, indexes > entries will be
1418  * assigned via modulo division of the index
1419  */
1420 int set_name_idx(char *target, size_t tlen, char *input, int index,
1421                  bool unique_filename)
1422 {
1423         unsigned int cur_idx;
1424         int len;
1425         char *fname, *str, *p;
1426
1427         p = str = strdup(input);
1428
1429         index %= get_max_str_idx(input);
1430         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1431                 fname = get_next_str(&str);
1432
1433         if (client_sockaddr_str[0] && unique_filename) {
1434                 len = snprintf(target, tlen, "%s/%s.", fname,
1435                                 client_sockaddr_str);
1436         } else
1437                 len = snprintf(target, tlen, "%s%c", fname,
1438                                 FIO_OS_PATH_SEPARATOR);
1439
1440         target[tlen - 1] = '\0';
1441         free(p);
1442
1443         return len;
1444 }
1445
1446 char* get_name_by_idx(char *input, int index)
1447 {
1448         unsigned int cur_idx;
1449         char *fname, *str, *p;
1450
1451         p = str = strdup(input);
1452
1453         index %= get_max_str_idx(input);
1454         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1455                 fname = get_next_str(&str);
1456
1457         fname = strdup(fname);
1458         free(p);
1459
1460         return fname;
1461 }
1462
1463 static int str_filename_cb(void *data, const char *input)
1464 {
1465         struct thread_data *td = cb_data_to_td(data);
1466         char *fname, *str, *p;
1467
1468         p = str = strdup(input);
1469
1470         strip_blank_front(&str);
1471         strip_blank_end(str);
1472
1473         /*
1474          * Ignore what we may already have from nrfiles option.
1475          */
1476         if (!td->files_index)
1477                 td->o.nr_files = 0;
1478
1479         while ((fname = get_next_str(&str)) != NULL) {
1480                 if (!strlen(fname))
1481                         break;
1482                 add_file(td, fname, 0, 1);
1483         }
1484
1485         free(p);
1486         return 0;
1487 }
1488
1489 static int str_directory_cb(void *data, const char fio_unused *unused)
1490 {
1491         struct thread_data *td = cb_data_to_td(data);
1492         struct stat sb;
1493         char *dirname, *str, *p;
1494         int ret = 0;
1495
1496         if (parse_dryrun())
1497                 return 0;
1498
1499         p = str = strdup(td->o.directory);
1500         while ((dirname = get_next_str(&str)) != NULL) {
1501                 if (lstat(dirname, &sb) < 0) {
1502                         ret = errno;
1503
1504                         log_err("fio: %s is not a directory\n", dirname);
1505                         td_verror(td, ret, "lstat");
1506                         goto out;
1507                 }
1508                 if (!S_ISDIR(sb.st_mode)) {
1509                         log_err("fio: %s is not a directory\n", dirname);
1510                         ret = 1;
1511                         goto out;
1512                 }
1513         }
1514
1515 out:
1516         free(p);
1517         return ret;
1518 }
1519
1520 static int str_opendir_cb(void *data, const char fio_unused *str)
1521 {
1522         struct thread_data *td = cb_data_to_td(data);
1523
1524         if (parse_dryrun())
1525                 return 0;
1526
1527         if (!td->files_index)
1528                 td->o.nr_files = 0;
1529
1530         return add_dir_files(td, td->o.opendir);
1531 }
1532
1533 static int str_buffer_pattern_cb(void *data, const char *input)
1534 {
1535         struct thread_data *td = cb_data_to_td(data);
1536         int ret;
1537
1538         /* FIXME: for now buffer pattern does not support formats */
1539         ret = parse_and_fill_pattern_alloc(input, strlen(input),
1540                                 &td->o.buffer_pattern, NULL, NULL, NULL);
1541         if (ret < 0)
1542                 return 1;
1543
1544         assert(ret != 0);
1545         td->o.buffer_pattern_bytes = ret;
1546
1547         /*
1548          * If this job is doing any reading or has compression set,
1549          * ensure that we refill buffers for writes or we could be
1550          * invalidating the pattern through reads.
1551          */
1552         if (!td->o.compress_percentage && !td_read(td))
1553                 td->o.refill_buffers = 0;
1554         else
1555                 td->o.refill_buffers = 1;
1556
1557         td->o.scramble_buffers = 0;
1558         td->o.zero_buffers = 0;
1559
1560         return 0;
1561 }
1562
1563 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1564 {
1565         struct thread_data *td = cb_data_to_td(data);
1566
1567         td->flags |= TD_F_COMPRESS;
1568         td->o.compress_percentage = *il;
1569         return 0;
1570 }
1571
1572 static int str_dedupe_cb(void *data, unsigned long long *il)
1573 {
1574         struct thread_data *td = cb_data_to_td(data);
1575
1576         td->flags |= TD_F_COMPRESS;
1577         td->o.dedupe_percentage = *il;
1578         td->o.refill_buffers = 1;
1579         return 0;
1580 }
1581
1582 static int str_verify_pattern_cb(void *data, const char *input)
1583 {
1584         struct thread_data *td = cb_data_to_td(data);
1585         int ret;
1586
1587         td->o.verify_fmt_sz = FIO_ARRAY_SIZE(td->o.verify_fmt);
1588         ret = parse_and_fill_pattern_alloc(input, strlen(input),
1589                         &td->o.verify_pattern, fmt_desc, td->o.verify_fmt,
1590                         &td->o.verify_fmt_sz);
1591         if (ret < 0)
1592                 return 1;
1593
1594         assert(ret != 0);
1595         td->o.verify_pattern_bytes = ret;
1596         /*
1597          * VERIFY_* could already be set
1598          */
1599         if (!fio_option_is_set(&td->o, verify))
1600                 td->o.verify = VERIFY_PATTERN;
1601
1602         return 0;
1603 }
1604
1605 static int str_gtod_reduce_cb(void *data, int *il)
1606 {
1607         struct thread_data *td = cb_data_to_td(data);
1608         int val = *il;
1609
1610         /*
1611          * Only modify options if gtod_reduce==1
1612          * Otherwise leave settings alone.
1613          */
1614         if (val) {
1615                 td->o.disable_lat = 1;
1616                 td->o.disable_clat = 1;
1617                 td->o.disable_slat = 1;
1618                 td->o.disable_bw = 1;
1619                 td->o.clat_percentiles = 0;
1620                 td->o.lat_percentiles = 0;
1621                 td->o.slat_percentiles = 0;
1622                 td->ts_cache_mask = 63;
1623         }
1624
1625         return 0;
1626 }
1627
1628 static int str_offset_cb(void *data, unsigned long long *__val)
1629 {
1630         struct thread_data *td = cb_data_to_td(data);
1631         unsigned long long v = *__val;
1632
1633         if (parse_is_percent(v)) {
1634                 td->o.start_offset = 0;
1635                 td->o.start_offset_percent = -1ULL - v;
1636                 td->o.start_offset_nz = 0;
1637                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1638                                         td->o.start_offset_percent);
1639         } else if (parse_is_zone(v)) {
1640                 td->o.start_offset = 0;
1641                 td->o.start_offset_percent = 0;
1642                 td->o.start_offset_nz = v - ZONE_BASE_VAL;
1643         } else
1644                 td->o.start_offset = v;
1645
1646         return 0;
1647 }
1648
1649 static int str_offset_increment_cb(void *data, unsigned long long *__val)
1650 {
1651         struct thread_data *td = cb_data_to_td(data);
1652         unsigned long long v = *__val;
1653
1654         if (parse_is_percent(v)) {
1655                 td->o.offset_increment = 0;
1656                 td->o.offset_increment_percent = -1ULL - v;
1657                 td->o.offset_increment_nz = 0;
1658                 dprint(FD_PARSE, "SET offset_increment_percent %d\n",
1659                                         td->o.offset_increment_percent);
1660         } else if (parse_is_zone(v)) {
1661                 td->o.offset_increment = 0;
1662                 td->o.offset_increment_percent = 0;
1663                 td->o.offset_increment_nz = v - ZONE_BASE_VAL;
1664         } else
1665                 td->o.offset_increment = v;
1666
1667         return 0;
1668 }
1669
1670 static int str_size_cb(void *data, unsigned long long *__val)
1671 {
1672         struct thread_data *td = cb_data_to_td(data);
1673         unsigned long long v = *__val;
1674
1675         if (parse_is_percent(v)) {
1676                 td->o.size = 0;
1677                 td->o.size_percent = -1ULL - v;
1678                 dprint(FD_PARSE, "SET size_percent %d\n",
1679                                         td->o.size_percent);
1680         } else if (parse_is_zone(v)) {
1681                 td->o.size = 0;
1682                 td->o.size_percent = 0;
1683                 td->o.size_nz = v - ZONE_BASE_VAL;
1684         } else
1685                 td->o.size = v;
1686
1687         return 0;
1688 }
1689
1690 static int str_io_size_cb(void *data, unsigned long long *__val)
1691 {
1692         struct thread_data *td = cb_data_to_td(data);
1693         unsigned long long v = *__val;
1694
1695         if (parse_is_percent_uncapped(v)) {
1696                 td->o.io_size = 0;
1697                 td->o.io_size_percent = -1ULL - v;
1698                 if (td->o.io_size_percent > 100) {
1699                         log_err("fio: io_size values greater than 100%% aren't supported\n");
1700                         return 1;
1701                 }
1702                 dprint(FD_PARSE, "SET io_size_percent %d\n",
1703                                         td->o.io_size_percent);
1704         } else if (parse_is_zone(v)) {
1705                 td->o.io_size = 0;
1706                 td->o.io_size_percent = 0;
1707                 td->o.io_size_nz = v - ZONE_BASE_VAL;
1708         } else
1709                 td->o.io_size = v;
1710
1711         return 0;
1712 }
1713
1714 static int str_zoneskip_cb(void *data, unsigned long long *__val)
1715 {
1716         struct thread_data *td = cb_data_to_td(data);
1717         unsigned long long v = *__val;
1718
1719         if (parse_is_zone(v)) {
1720                 td->o.zone_skip = 0;
1721                 td->o.zone_skip_nz = v - ZONE_BASE_VAL;
1722         } else
1723                 td->o.zone_skip = v;
1724
1725         return 0;
1726 }
1727
1728 static int str_write_bw_log_cb(void *data, const char *str)
1729 {
1730         struct thread_data *td = cb_data_to_td(data);
1731
1732         if (str)
1733                 td->o.bw_log_file = strdup(str);
1734
1735         td->o.write_bw_log = 1;
1736         return 0;
1737 }
1738
1739 static int str_write_lat_log_cb(void *data, const char *str)
1740 {
1741         struct thread_data *td = cb_data_to_td(data);
1742
1743         if (str)
1744                 td->o.lat_log_file = strdup(str);
1745
1746         td->o.write_lat_log = 1;
1747         return 0;
1748 }
1749
1750 static int str_write_iops_log_cb(void *data, const char *str)
1751 {
1752         struct thread_data *td = cb_data_to_td(data);
1753
1754         if (str)
1755                 td->o.iops_log_file = strdup(str);
1756
1757         td->o.write_iops_log = 1;
1758         return 0;
1759 }
1760
1761 static int str_write_hist_log_cb(void *data, const char *str)
1762 {
1763         struct thread_data *td = cb_data_to_td(data);
1764
1765         if (str)
1766                 td->o.hist_log_file = strdup(str);
1767
1768         td->o.write_hist_log = 1;
1769         return 0;
1770 }
1771
1772 /*
1773  * str is supposed to be a substring of the strdup'd original string,
1774  * and is valid only if it's a regular file path.
1775  * This function keeps the pointer to the path as needed later.
1776  *
1777  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1778  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1779  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1780  */
1781 static int str_ioengine_external_cb(void *data, const char *str)
1782 {
1783         struct thread_data *td = cb_data_to_td(data);
1784         struct stat sb;
1785         char *p;
1786
1787         if (!str) {
1788                 log_err("fio: null external ioengine path\n");
1789                 return 1;
1790         }
1791
1792         p = (char *)str; /* str is mutable */
1793         strip_blank_front(&p);
1794         strip_blank_end(p);
1795
1796         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1797                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1798                 return 1;
1799         }
1800
1801         td->o.ioengine_so_path = p;
1802         return 0;
1803 }
1804
1805 static int rw_verify(const struct fio_option *o, void *data)
1806 {
1807         struct thread_data *td = cb_data_to_td(data);
1808
1809         if (read_only && (td_write(td) || td_trim(td))) {
1810                 log_err("fio: job <%s> has write or trim bit set, but"
1811                         " fio is in read-only mode\n", td->o.name);
1812                 return 1;
1813         }
1814
1815         return 0;
1816 }
1817
1818 static int gtod_cpu_verify(const struct fio_option *o, void *data)
1819 {
1820 #ifndef FIO_HAVE_CPU_AFFINITY
1821         struct thread_data *td = cb_data_to_td(data);
1822
1823         if (td->o.gtod_cpu) {
1824                 log_err("fio: platform must support CPU affinity for"
1825                         "gettimeofday() offloading\n");
1826                 return 1;
1827         }
1828 #endif
1829
1830         return 0;
1831 }
1832
1833 /*
1834  * Map of job/command line options
1835  */
1836 struct fio_option fio_options[FIO_MAX_OPTS] = {
1837         {
1838                 .name   = "description",
1839                 .lname  = "Description of job",
1840                 .type   = FIO_OPT_STR_STORE,
1841                 .off1   = offsetof(struct thread_options, description),
1842                 .help   = "Text job description",
1843                 .category = FIO_OPT_C_GENERAL,
1844                 .group  = FIO_OPT_G_DESC,
1845         },
1846         {
1847                 .name   = "name",
1848                 .lname  = "Job name",
1849                 .type   = FIO_OPT_STR_STORE,
1850                 .off1   = offsetof(struct thread_options, name),
1851                 .help   = "Name of this job",
1852                 .category = FIO_OPT_C_GENERAL,
1853                 .group  = FIO_OPT_G_DESC,
1854         },
1855         {
1856                 .name   = "wait_for",
1857                 .lname  = "Waitee name",
1858                 .type   = FIO_OPT_STR_STORE,
1859                 .off1   = offsetof(struct thread_options, wait_for),
1860                 .help   = "Name of the job this one wants to wait for before starting",
1861                 .category = FIO_OPT_C_GENERAL,
1862                 .group  = FIO_OPT_G_DESC,
1863         },
1864         {
1865                 .name   = "filename",
1866                 .lname  = "Filename(s)",
1867                 .type   = FIO_OPT_STR_STORE,
1868                 .off1   = offsetof(struct thread_options, filename),
1869                 .maxlen = PATH_MAX,
1870                 .cb     = str_filename_cb,
1871                 .prio   = -1, /* must come after "directory" */
1872                 .help   = "File(s) to use for the workload",
1873                 .category = FIO_OPT_C_FILE,
1874                 .group  = FIO_OPT_G_FILENAME,
1875         },
1876         {
1877                 .name   = "directory",
1878                 .lname  = "Directory",
1879                 .type   = FIO_OPT_STR_STORE,
1880                 .off1   = offsetof(struct thread_options, directory),
1881                 .cb     = str_directory_cb,
1882                 .help   = "Directory to store files in",
1883                 .category = FIO_OPT_C_FILE,
1884                 .group  = FIO_OPT_G_FILENAME,
1885         },
1886         {
1887                 .name   = "filename_format",
1888                 .lname  = "Filename Format",
1889                 .type   = FIO_OPT_STR_STORE,
1890                 .off1   = offsetof(struct thread_options, filename_format),
1891                 .prio   = -1, /* must come after "directory" */
1892                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1893                 .def    = "$jobname.$jobnum.$filenum",
1894                 .category = FIO_OPT_C_FILE,
1895                 .group  = FIO_OPT_G_FILENAME,
1896         },
1897         {
1898                 .name   = "unique_filename",
1899                 .lname  = "Unique Filename",
1900                 .type   = FIO_OPT_BOOL,
1901                 .off1   = offsetof(struct thread_options, unique_filename),
1902                 .help   = "For network clients, prefix file with source IP",
1903                 .def    = "1",
1904                 .category = FIO_OPT_C_FILE,
1905                 .group  = FIO_OPT_G_FILENAME,
1906         },
1907         {
1908                 .name   = "lockfile",
1909                 .lname  = "Lockfile",
1910                 .type   = FIO_OPT_STR,
1911                 .off1   = offsetof(struct thread_options, file_lock_mode),
1912                 .help   = "Lock file when doing IO to it",
1913                 .prio   = 1,
1914                 .parent = "filename",
1915                 .hide   = 0,
1916                 .def    = "none",
1917                 .category = FIO_OPT_C_FILE,
1918                 .group  = FIO_OPT_G_FILENAME,
1919                 .posval = {
1920                           { .ival = "none",
1921                             .oval = FILE_LOCK_NONE,
1922                             .help = "No file locking",
1923                           },
1924                           { .ival = "exclusive",
1925                             .oval = FILE_LOCK_EXCLUSIVE,
1926                             .help = "Exclusive file lock",
1927                           },
1928                           {
1929                             .ival = "readwrite",
1930                             .oval = FILE_LOCK_READWRITE,
1931                             .help = "Read vs write lock",
1932                           },
1933                 },
1934         },
1935         {
1936                 .name   = "opendir",
1937                 .lname  = "Open directory",
1938                 .type   = FIO_OPT_STR_STORE,
1939                 .off1   = offsetof(struct thread_options, opendir),
1940                 .cb     = str_opendir_cb,
1941                 .help   = "Recursively add files from this directory and down",
1942                 .category = FIO_OPT_C_FILE,
1943                 .group  = FIO_OPT_G_FILENAME,
1944         },
1945         {
1946                 .name   = "rw",
1947                 .lname  = "Read/write",
1948                 .alias  = "readwrite",
1949                 .type   = FIO_OPT_STR,
1950                 .cb     = str_rw_cb,
1951                 .off1   = offsetof(struct thread_options, td_ddir),
1952                 .help   = "IO direction",
1953                 .def    = "read",
1954                 .verify = rw_verify,
1955                 .category = FIO_OPT_C_IO,
1956                 .group  = FIO_OPT_G_IO_BASIC,
1957                 .posval = {
1958                           { .ival = "read",
1959                             .oval = TD_DDIR_READ,
1960                             .help = "Sequential read",
1961                           },
1962                           { .ival = "write",
1963                             .oval = TD_DDIR_WRITE,
1964                             .help = "Sequential write",
1965                           },
1966                           { .ival = "trim",
1967                             .oval = TD_DDIR_TRIM,
1968                             .help = "Sequential trim",
1969                           },
1970                           { .ival = "randread",
1971                             .oval = TD_DDIR_RANDREAD,
1972                             .help = "Random read",
1973                           },
1974                           { .ival = "randwrite",
1975                             .oval = TD_DDIR_RANDWRITE,
1976                             .help = "Random write",
1977                           },
1978                           { .ival = "randtrim",
1979                             .oval = TD_DDIR_RANDTRIM,
1980                             .help = "Random trim",
1981                           },
1982                           { .ival = "rw",
1983                             .oval = TD_DDIR_RW,
1984                             .help = "Sequential read and write mix",
1985                           },
1986                           { .ival = "readwrite",
1987                             .oval = TD_DDIR_RW,
1988                             .help = "Sequential read and write mix",
1989                           },
1990                           { .ival = "randrw",
1991                             .oval = TD_DDIR_RANDRW,
1992                             .help = "Random read and write mix"
1993                           },
1994                           { .ival = "trimwrite",
1995                             .oval = TD_DDIR_TRIMWRITE,
1996                             .help = "Trim and write mix, trims preceding writes"
1997                           },
1998                           { .ival = "randtrimwrite",
1999                             .oval = TD_DDIR_RANDTRIMWRITE,
2000                             .help = "Randomly trim and write mix, trims preceding writes"
2001                           },
2002                 },
2003         },
2004         {
2005                 .name   = "rw_sequencer",
2006                 .lname  = "RW Sequencer",
2007                 .type   = FIO_OPT_STR,
2008                 .off1   = offsetof(struct thread_options, rw_seq),
2009                 .help   = "IO offset generator modifier",
2010                 .def    = "sequential",
2011                 .category = FIO_OPT_C_IO,
2012                 .group  = FIO_OPT_G_IO_BASIC,
2013                 .posval = {
2014                           { .ival = "sequential",
2015                             .oval = RW_SEQ_SEQ,
2016                             .help = "Generate sequential offsets",
2017                           },
2018                           { .ival = "identical",
2019                             .oval = RW_SEQ_IDENT,
2020                             .help = "Generate identical offsets",
2021                           },
2022                 },
2023         },
2024
2025         {
2026                 .name   = "ioengine",
2027                 .lname  = "IO Engine",
2028                 .type   = FIO_OPT_STR_STORE,
2029                 .off1   = offsetof(struct thread_options, ioengine),
2030                 .help   = "IO engine to use",
2031                 .def    = FIO_PREFERRED_ENGINE,
2032                 .category = FIO_OPT_C_IO,
2033                 .group  = FIO_OPT_G_IO_BASIC,
2034                 .posval = {
2035                           { .ival = "sync",
2036                             .help = "Use read/write",
2037                           },
2038                           { .ival = "psync",
2039                             .help = "Use pread/pwrite",
2040                           },
2041                           { .ival = "vsync",
2042                             .help = "Use readv/writev",
2043                           },
2044 #ifdef CONFIG_PWRITEV
2045                           { .ival = "pvsync",
2046                             .help = "Use preadv/pwritev",
2047                           },
2048 #endif
2049 #ifdef FIO_HAVE_PWRITEV2
2050                           { .ival = "pvsync2",
2051                             .help = "Use preadv2/pwritev2",
2052                           },
2053 #endif
2054 #ifdef CONFIG_LIBAIO
2055                           { .ival = "libaio",
2056                             .help = "Linux native asynchronous IO",
2057                           },
2058 #endif
2059 #ifdef ARCH_HAVE_IOURING
2060                           { .ival = "io_uring",
2061                             .help = "Fast Linux native aio",
2062                           },
2063 #endif
2064 #ifdef CONFIG_POSIXAIO
2065                           { .ival = "posixaio",
2066                             .help = "POSIX asynchronous IO",
2067                           },
2068 #endif
2069 #ifdef CONFIG_SOLARISAIO
2070                           { .ival = "solarisaio",
2071                             .help = "Solaris native asynchronous IO",
2072                           },
2073 #endif
2074 #ifdef CONFIG_WINDOWSAIO
2075                           { .ival = "windowsaio",
2076                             .help = "Windows native asynchronous IO"
2077                           },
2078 #endif
2079 #ifdef CONFIG_RBD
2080                           { .ival = "rbd",
2081                             .help = "Rados Block Device asynchronous IO"
2082                           },
2083 #endif
2084                           { .ival = "mmap",
2085                             .help = "Memory mapped IO"
2086                           },
2087 #ifdef CONFIG_LINUX_SPLICE
2088                           { .ival = "splice",
2089                             .help = "splice/vmsplice based IO",
2090                           },
2091                           { .ival = "netsplice",
2092                             .help = "splice/vmsplice to/from the network",
2093                           },
2094 #endif
2095 #ifdef FIO_HAVE_SGIO
2096                           { .ival = "sg",
2097                             .help = "SCSI generic v3 IO",
2098                           },
2099 #endif
2100                           { .ival = "null",
2101                             .help = "Testing engine (no data transfer)",
2102                           },
2103                           { .ival = "net",
2104                             .help = "Network IO",
2105                           },
2106                           { .ival = "cpuio",
2107                             .help = "CPU cycle burner engine",
2108                           },
2109 #ifdef CONFIG_RDMA
2110                           { .ival = "rdma",
2111                             .help = "RDMA IO engine",
2112                           },
2113 #endif
2114 #ifdef CONFIG_LIBRPMA_APM
2115                           { .ival = "librpma_apm",
2116                             .help = "librpma IO engine in APM mode",
2117                           },
2118 #endif
2119 #ifdef CONFIG_LIBRPMA_GPSPM
2120                           { .ival = "librpma_gpspm",
2121                             .help = "librpma IO engine in GPSPM mode",
2122                           },
2123 #endif
2124 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
2125                           { .ival = "e4defrag",
2126                             .help = "ext4 defrag engine",
2127                           },
2128 #endif
2129 #ifdef CONFIG_LINUX_FALLOCATE
2130                           { .ival = "falloc",
2131                             .help = "fallocate() file based engine",
2132                           },
2133 #endif
2134 #ifdef CONFIG_GFAPI
2135                           { .ival = "gfapi",
2136                             .help = "Glusterfs libgfapi(sync) based engine"
2137                           },
2138                           { .ival = "gfapi_async",
2139                             .help = "Glusterfs libgfapi(async) based engine"
2140                           },
2141 #endif
2142 #ifdef CONFIG_LIBHDFS
2143                           { .ival = "libhdfs",
2144                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
2145                           },
2146 #endif
2147 #ifdef CONFIG_IME
2148                           { .ival = "ime_psync",
2149                             .help = "DDN's IME synchronous IO engine",
2150                           },
2151                           { .ival = "ime_psyncv",
2152                             .help = "DDN's IME synchronous IO engine using iovecs",
2153                           },
2154                           { .ival = "ime_aio",
2155                             .help = "DDN's IME asynchronous IO engine",
2156                           },
2157 #endif
2158 #ifdef CONFIG_LINUX_DEVDAX
2159                           { .ival = "dev-dax",
2160                             .help = "DAX Device based IO engine",
2161                           },
2162 #endif
2163                           {
2164                             .ival = "filecreate",
2165                             .help = "File creation engine",
2166                           },
2167                           { .ival = "external",
2168                             .help = "Load external engine (append name)",
2169                             .cb = str_ioengine_external_cb,
2170                           },
2171 #ifdef CONFIG_LIBPMEM
2172                           { .ival = "libpmem",
2173                             .help = "PMDK libpmem based IO engine",
2174                           },
2175 #endif
2176 #ifdef CONFIG_HTTP
2177                           { .ival = "http",
2178                             .help = "HTTP (WebDAV/S3) IO engine",
2179                           },
2180 #endif
2181                           { .ival = "nbd",
2182                             .help = "Network Block Device (NBD) IO engine"
2183                           },
2184 #ifdef CONFIG_DFS
2185                           { .ival = "dfs",
2186                             .help = "DAOS File System (dfs) IO engine",
2187                           },
2188 #endif
2189 #ifdef CONFIG_LIBNFS
2190                           { .ival = "nfs",
2191                             .help = "NFS IO engine",
2192                           },
2193 #endif
2194 #ifdef CONFIG_LIBXNVME
2195                           { .ival = "xnvme",
2196                             .help = "XNVME IO engine",
2197                           },
2198 #endif
2199                 },
2200         },
2201         {
2202                 .name   = "iodepth",
2203                 .lname  = "IO Depth",
2204                 .type   = FIO_OPT_INT,
2205                 .off1   = offsetof(struct thread_options, iodepth),
2206                 .help   = "Number of IO buffers to keep in flight",
2207                 .minval = 1,
2208                 .interval = 1,
2209                 .def    = "1",
2210                 .category = FIO_OPT_C_IO,
2211                 .group  = FIO_OPT_G_IO_BASIC,
2212         },
2213         {
2214                 .name   = "iodepth_batch",
2215                 .lname  = "IO Depth batch",
2216                 .alias  = "iodepth_batch_submit",
2217                 .type   = FIO_OPT_INT,
2218                 .off1   = offsetof(struct thread_options, iodepth_batch),
2219                 .help   = "Number of IO buffers to submit in one go",
2220                 .parent = "iodepth",
2221                 .hide   = 1,
2222                 .interval = 1,
2223                 .def    = "1",
2224                 .category = FIO_OPT_C_IO,
2225                 .group  = FIO_OPT_G_IO_BASIC,
2226         },
2227         {
2228                 .name   = "iodepth_batch_complete_min",
2229                 .lname  = "Min IO depth batch complete",
2230                 .alias  = "iodepth_batch_complete",
2231                 .type   = FIO_OPT_INT,
2232                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
2233                 .help   = "Min number of IO buffers to retrieve in one go",
2234                 .parent = "iodepth",
2235                 .hide   = 1,
2236                 .minval = 0,
2237                 .interval = 1,
2238                 .def    = "1",
2239                 .category = FIO_OPT_C_IO,
2240                 .group  = FIO_OPT_G_IO_BASIC,
2241         },
2242         {
2243                 .name   = "iodepth_batch_complete_max",
2244                 .lname  = "Max IO depth batch complete",
2245                 .type   = FIO_OPT_INT,
2246                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
2247                 .help   = "Max number of IO buffers to retrieve in one go",
2248                 .parent = "iodepth",
2249                 .hide   = 1,
2250                 .minval = 0,
2251                 .interval = 1,
2252                 .category = FIO_OPT_C_IO,
2253                 .group  = FIO_OPT_G_IO_BASIC,
2254         },
2255         {
2256                 .name   = "iodepth_low",
2257                 .lname  = "IO Depth batch low",
2258                 .type   = FIO_OPT_INT,
2259                 .off1   = offsetof(struct thread_options, iodepth_low),
2260                 .help   = "Low water mark for queuing depth",
2261                 .parent = "iodepth",
2262                 .hide   = 1,
2263                 .interval = 1,
2264                 .category = FIO_OPT_C_IO,
2265                 .group  = FIO_OPT_G_IO_BASIC,
2266         },
2267         {
2268                 .name   = "serialize_overlap",
2269                 .lname  = "Serialize overlap",
2270                 .off1   = offsetof(struct thread_options, serialize_overlap),
2271                 .type   = FIO_OPT_BOOL,
2272                 .help   = "Wait for in-flight IOs that collide to complete",
2273                 .parent = "iodepth",
2274                 .def    = "0",
2275                 .category = FIO_OPT_C_IO,
2276                 .group  = FIO_OPT_G_IO_BASIC,
2277         },
2278         {
2279                 .name   = "io_submit_mode",
2280                 .lname  = "IO submit mode",
2281                 .type   = FIO_OPT_STR,
2282                 .off1   = offsetof(struct thread_options, io_submit_mode),
2283                 .help   = "How IO submissions and completions are done",
2284                 .def    = "inline",
2285                 .category = FIO_OPT_C_IO,
2286                 .group  = FIO_OPT_G_IO_BASIC,
2287                 .posval = {
2288                           { .ival = "inline",
2289                             .oval = IO_MODE_INLINE,
2290                             .help = "Submit and complete IO inline",
2291                           },
2292                           { .ival = "offload",
2293                             .oval = IO_MODE_OFFLOAD,
2294                             .help = "Offload submit and complete to threads",
2295                           },
2296                 },
2297         },
2298         {
2299                 .name   = "size",
2300                 .lname  = "Size",
2301                 .type   = FIO_OPT_STR_VAL_ZONE,
2302                 .cb     = str_size_cb,
2303                 .off1   = offsetof(struct thread_options, size),
2304                 .help   = "Total size of device or files",
2305                 .category = FIO_OPT_C_IO,
2306                 .group  = FIO_OPT_G_INVALID,
2307         },
2308         {
2309                 .name   = "io_size",
2310                 .alias  = "io_limit",
2311                 .lname  = "IO Size",
2312                 .type   = FIO_OPT_STR_VAL_ZONE,
2313                 .cb     = str_io_size_cb,
2314                 .off1   = offsetof(struct thread_options, io_size),
2315                 .help   = "Total size of I/O to be performed",
2316                 .category = FIO_OPT_C_IO,
2317                 .group  = FIO_OPT_G_INVALID,
2318         },
2319         {
2320                 .name   = "fill_device",
2321                 .lname  = "Fill device",
2322                 .alias  = "fill_fs",
2323                 .type   = FIO_OPT_BOOL,
2324                 .off1   = offsetof(struct thread_options, fill_device),
2325                 .help   = "Write until an ENOSPC error occurs",
2326                 .def    = "0",
2327                 .category = FIO_OPT_C_FILE,
2328                 .group  = FIO_OPT_G_INVALID,
2329         },
2330         {
2331                 .name   = "filesize",
2332                 .lname  = "File size",
2333                 .type   = FIO_OPT_STR_VAL,
2334                 .off1   = offsetof(struct thread_options, file_size_low),
2335                 .off2   = offsetof(struct thread_options, file_size_high),
2336                 .minval = 1,
2337                 .help   = "Size of individual files",
2338                 .interval = 1024 * 1024,
2339                 .category = FIO_OPT_C_FILE,
2340                 .group  = FIO_OPT_G_INVALID,
2341         },
2342         {
2343                 .name   = "file_append",
2344                 .lname  = "File append",
2345                 .type   = FIO_OPT_BOOL,
2346                 .off1   = offsetof(struct thread_options, file_append),
2347                 .help   = "IO will start at the end of the file(s)",
2348                 .def    = "0",
2349                 .category = FIO_OPT_C_FILE,
2350                 .group  = FIO_OPT_G_INVALID,
2351         },
2352         {
2353                 .name   = "offset",
2354                 .lname  = "IO offset",
2355                 .alias  = "fileoffset",
2356                 .type   = FIO_OPT_STR_VAL_ZONE,
2357                 .cb     = str_offset_cb,
2358                 .off1   = offsetof(struct thread_options, start_offset),
2359                 .help   = "Start IO from this offset",
2360                 .def    = "0",
2361                 .category = FIO_OPT_C_IO,
2362                 .group  = FIO_OPT_G_INVALID,
2363         },
2364         {
2365                 .name   = "offset_align",
2366                 .lname  = "IO offset alignment",
2367                 .type   = FIO_OPT_INT,
2368                 .off1   = offsetof(struct thread_options, start_offset_align),
2369                 .help   = "Start IO from this offset alignment",
2370                 .def    = "0",
2371                 .interval = 512,
2372                 .category = FIO_OPT_C_IO,
2373                 .group  = FIO_OPT_G_INVALID,
2374         },
2375         {
2376                 .name   = "offset_increment",
2377                 .lname  = "IO offset increment",
2378                 .type   = FIO_OPT_STR_VAL_ZONE,
2379                 .cb     = str_offset_increment_cb,
2380                 .off1   = offsetof(struct thread_options, offset_increment),
2381                 .help   = "What is the increment from one offset to the next",
2382                 .parent = "offset",
2383                 .hide   = 1,
2384                 .def    = "0",
2385                 .category = FIO_OPT_C_IO,
2386                 .group  = FIO_OPT_G_INVALID,
2387         },
2388         {
2389                 .name   = "number_ios",
2390                 .lname  = "Number of IOs to perform",
2391                 .type   = FIO_OPT_STR_VAL,
2392                 .off1   = offsetof(struct thread_options, number_ios),
2393                 .help   = "Force job completion after this number of IOs",
2394                 .def    = "0",
2395                 .category = FIO_OPT_C_IO,
2396                 .group  = FIO_OPT_G_INVALID,
2397         },
2398         {
2399                 .name   = "bs",
2400                 .lname  = "Block size",
2401                 .alias  = "blocksize",
2402                 .type   = FIO_OPT_ULL,
2403                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2404                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2405                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2406                 .minval = 1,
2407                 .help   = "Block size unit",
2408                 .def    = "4096",
2409                 .parent = "rw",
2410                 .hide   = 1,
2411                 .interval = 512,
2412                 .category = FIO_OPT_C_IO,
2413                 .group  = FIO_OPT_G_INVALID,
2414         },
2415         {
2416                 .name   = "ba",
2417                 .lname  = "Block size align",
2418                 .alias  = "blockalign",
2419                 .type   = FIO_OPT_ULL,
2420                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2421                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2422                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2423                 .minval = 1,
2424                 .help   = "IO block offset alignment",
2425                 .parent = "rw",
2426                 .hide   = 1,
2427                 .interval = 512,
2428                 .category = FIO_OPT_C_IO,
2429                 .group  = FIO_OPT_G_INVALID,
2430         },
2431         {
2432                 .name   = "bsrange",
2433                 .lname  = "Block size range",
2434                 .alias  = "blocksize_range",
2435                 .type   = FIO_OPT_RANGE,
2436                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2437                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2438                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2439                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2440                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2441                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2442                 .minval = 1,
2443                 .help   = "Set block size range (in more detail than bs)",
2444                 .parent = "rw",
2445                 .hide   = 1,
2446                 .interval = 4096,
2447                 .category = FIO_OPT_C_IO,
2448                 .group  = FIO_OPT_G_INVALID,
2449         },
2450         {
2451                 .name   = "bssplit",
2452                 .lname  = "Block size split",
2453                 .type   = FIO_OPT_STR_ULL,
2454                 .cb     = str_bssplit_cb,
2455                 .off1   = offsetof(struct thread_options, bssplit),
2456                 .help   = "Set a specific mix of block sizes",
2457                 .parent = "rw",
2458                 .hide   = 1,
2459                 .category = FIO_OPT_C_IO,
2460                 .group  = FIO_OPT_G_INVALID,
2461         },
2462         {
2463                 .name   = "bs_unaligned",
2464                 .lname  = "Block size unaligned",
2465                 .alias  = "blocksize_unaligned",
2466                 .type   = FIO_OPT_STR_SET,
2467                 .off1   = offsetof(struct thread_options, bs_unaligned),
2468                 .help   = "Don't sector align IO buffer sizes",
2469                 .parent = "rw",
2470                 .hide   = 1,
2471                 .category = FIO_OPT_C_IO,
2472                 .group  = FIO_OPT_G_INVALID,
2473         },
2474         {
2475                 .name   = "bs_is_seq_rand",
2476                 .lname  = "Block size division is seq/random (not read/write)",
2477                 .type   = FIO_OPT_BOOL,
2478                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2479                 .help   = "Consider any blocksize setting to be sequential,random",
2480                 .def    = "0",
2481                 .parent = "blocksize",
2482                 .category = FIO_OPT_C_IO,
2483                 .group  = FIO_OPT_G_INVALID,
2484         },
2485         {
2486                 .name   = "randrepeat",
2487                 .alias  = "allrandrepeat",
2488                 .lname  = "Random repeatable",
2489                 .type   = FIO_OPT_BOOL,
2490                 .off1   = offsetof(struct thread_options, rand_repeatable),
2491                 .help   = "Use repeatable random IO pattern",
2492                 .def    = "1",
2493                 .parent = "rw",
2494                 .hide   = 1,
2495                 .category = FIO_OPT_C_IO,
2496                 .group  = FIO_OPT_G_RANDOM,
2497         },
2498         {
2499                 .name   = "randseed",
2500                 .lname  = "The random generator seed",
2501                 .type   = FIO_OPT_STR_VAL,
2502                 .off1   = offsetof(struct thread_options, rand_seed),
2503                 .help   = "Set the random generator seed value",
2504                 .def    = "0x89",
2505                 .parent = "rw",
2506                 .category = FIO_OPT_C_IO,
2507                 .group  = FIO_OPT_G_RANDOM,
2508         },
2509         {
2510                 .name   = "norandommap",
2511                 .lname  = "No randommap",
2512                 .type   = FIO_OPT_STR_SET,
2513                 .off1   = offsetof(struct thread_options, norandommap),
2514                 .help   = "Accept potential duplicate random blocks",
2515                 .parent = "rw",
2516                 .hide   = 1,
2517                 .hide_on_set = 1,
2518                 .category = FIO_OPT_C_IO,
2519                 .group  = FIO_OPT_G_RANDOM,
2520         },
2521         {
2522                 .name   = "softrandommap",
2523                 .lname  = "Soft randommap",
2524                 .type   = FIO_OPT_BOOL,
2525                 .off1   = offsetof(struct thread_options, softrandommap),
2526                 .help   = "Set norandommap if randommap allocation fails",
2527                 .parent = "norandommap",
2528                 .hide   = 1,
2529                 .def    = "0",
2530                 .category = FIO_OPT_C_IO,
2531                 .group  = FIO_OPT_G_RANDOM,
2532         },
2533         {
2534                 .name   = "random_generator",
2535                 .lname  = "Random Generator",
2536                 .type   = FIO_OPT_STR,
2537                 .off1   = offsetof(struct thread_options, random_generator),
2538                 .help   = "Type of random number generator to use",
2539                 .def    = "tausworthe",
2540                 .posval = {
2541                           { .ival = "tausworthe",
2542                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2543                             .help = "Strong Tausworthe generator",
2544                           },
2545                           { .ival = "lfsr",
2546                             .oval = FIO_RAND_GEN_LFSR,
2547                             .help = "Variable length LFSR",
2548                           },
2549                           {
2550                             .ival = "tausworthe64",
2551                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2552                             .help = "64-bit Tausworthe variant",
2553                           },
2554                 },
2555                 .category = FIO_OPT_C_IO,
2556                 .group  = FIO_OPT_G_RANDOM,
2557         },
2558         {
2559                 .name   = "random_distribution",
2560                 .lname  = "Random Distribution",
2561                 .type   = FIO_OPT_STR,
2562                 .off1   = offsetof(struct thread_options, random_distribution),
2563                 .cb     = str_random_distribution_cb,
2564                 .help   = "Random offset distribution generator",
2565                 .def    = "random",
2566                 .posval = {
2567                           { .ival = "random",
2568                             .oval = FIO_RAND_DIST_RANDOM,
2569                             .help = "Completely random",
2570                           },
2571                           { .ival = "zipf",
2572                             .oval = FIO_RAND_DIST_ZIPF,
2573                             .help = "Zipf distribution",
2574                           },
2575                           { .ival = "pareto",
2576                             .oval = FIO_RAND_DIST_PARETO,
2577                             .help = "Pareto distribution",
2578                           },
2579                           { .ival = "normal",
2580                             .oval = FIO_RAND_DIST_GAUSS,
2581                             .help = "Normal (Gaussian) distribution",
2582                           },
2583                           { .ival = "zoned",
2584                             .oval = FIO_RAND_DIST_ZONED,
2585                             .help = "Zoned random distribution",
2586                           },
2587                           { .ival = "zoned_abs",
2588                             .oval = FIO_RAND_DIST_ZONED_ABS,
2589                             .help = "Zoned absolute random distribution",
2590                           },
2591                 },
2592                 .category = FIO_OPT_C_IO,
2593                 .group  = FIO_OPT_G_RANDOM,
2594         },
2595         {
2596                 .name   = "percentage_random",
2597                 .lname  = "Percentage Random",
2598                 .type   = FIO_OPT_INT,
2599                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2600                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2601                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2602                 .maxval = 100,
2603                 .help   = "Percentage of seq/random mix that should be random",
2604                 .def    = "100,100,100",
2605                 .interval = 5,
2606                 .inverse = "percentage_sequential",
2607                 .category = FIO_OPT_C_IO,
2608                 .group  = FIO_OPT_G_RANDOM,
2609         },
2610         {
2611                 .name   = "percentage_sequential",
2612                 .lname  = "Percentage Sequential",
2613                 .type   = FIO_OPT_DEPRECATED,
2614                 .category = FIO_OPT_C_IO,
2615                 .group  = FIO_OPT_G_RANDOM,
2616         },
2617         {
2618                 .name   = "nrfiles",
2619                 .lname  = "Number of files",
2620                 .alias  = "nr_files",
2621                 .type   = FIO_OPT_INT,
2622                 .off1   = offsetof(struct thread_options, nr_files),
2623                 .help   = "Split job workload between this number of files",
2624                 .def    = "1",
2625                 .interval = 1,
2626                 .category = FIO_OPT_C_FILE,
2627                 .group  = FIO_OPT_G_INVALID,
2628         },
2629         {
2630                 .name   = "openfiles",
2631                 .lname  = "Number of open files",
2632                 .type   = FIO_OPT_INT,
2633                 .off1   = offsetof(struct thread_options, open_files),
2634                 .help   = "Number of files to keep open at the same time",
2635                 .category = FIO_OPT_C_FILE,
2636                 .group  = FIO_OPT_G_INVALID,
2637         },
2638         {
2639                 .name   = "file_service_type",
2640                 .lname  = "File service type",
2641                 .type   = FIO_OPT_STR,
2642                 .cb     = str_fst_cb,
2643                 .off1   = offsetof(struct thread_options, file_service_type),
2644                 .help   = "How to select which file to service next",
2645                 .def    = "roundrobin",
2646                 .category = FIO_OPT_C_FILE,
2647                 .group  = FIO_OPT_G_INVALID,
2648                 .posval = {
2649                           { .ival = "random",
2650                             .oval = FIO_FSERVICE_RANDOM,
2651                             .help = "Choose a file at random (uniform)",
2652                           },
2653                           { .ival = "zipf",
2654                             .oval = FIO_FSERVICE_ZIPF,
2655                             .help = "Zipf randomized",
2656                           },
2657                           { .ival = "pareto",
2658                             .oval = FIO_FSERVICE_PARETO,
2659                             .help = "Pareto randomized",
2660                           },
2661                           { .ival = "normal",
2662                             .oval = FIO_FSERVICE_GAUSS,
2663                             .help = "Normal (Gaussian) randomized",
2664                           },
2665                           { .ival = "gauss",
2666                             .oval = FIO_FSERVICE_GAUSS,
2667                             .help = "Alias for normal",
2668                           },
2669                           { .ival = "roundrobin",
2670                             .oval = FIO_FSERVICE_RR,
2671                             .help = "Round robin select files",
2672                           },
2673                           { .ival = "sequential",
2674                             .oval = FIO_FSERVICE_SEQ,
2675                             .help = "Finish one file before moving to the next",
2676                           },
2677                 },
2678                 .parent = "nrfiles",
2679                 .hide   = 1,
2680         },
2681         {
2682                 .name   = "fallocate",
2683                 .lname  = "Fallocate",
2684                 .type   = FIO_OPT_STR,
2685                 .off1   = offsetof(struct thread_options, fallocate_mode),
2686                 .help   = "Whether pre-allocation is performed when laying out files",
2687 #ifdef FIO_HAVE_DEFAULT_FALLOCATE
2688                 .def    = "native",
2689 #else
2690                 .def    = "none",
2691 #endif
2692                 .category = FIO_OPT_C_FILE,
2693                 .group  = FIO_OPT_G_INVALID,
2694                 .posval = {
2695                           { .ival = "none",
2696                             .oval = FIO_FALLOCATE_NONE,
2697                             .help = "Do not pre-allocate space",
2698                           },
2699                           { .ival = "native",
2700                             .oval = FIO_FALLOCATE_NATIVE,
2701                             .help = "Use native pre-allocation if possible",
2702                           },
2703 #ifdef CONFIG_POSIX_FALLOCATE
2704                           { .ival = "posix",
2705                             .oval = FIO_FALLOCATE_POSIX,
2706                             .help = "Use posix_fallocate()",
2707                           },
2708 #endif
2709 #ifdef CONFIG_LINUX_FALLOCATE
2710                           { .ival = "keep",
2711                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2712                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2713                           },
2714 #endif
2715                           { .ival = "truncate",
2716                             .oval = FIO_FALLOCATE_TRUNCATE,
2717                             .help = "Truncate file to final size instead of allocating"
2718                           },
2719                           /* Compatibility with former boolean values */
2720                           { .ival = "0",
2721                             .oval = FIO_FALLOCATE_NONE,
2722                             .help = "Alias for 'none'",
2723                           },
2724 #ifdef CONFIG_POSIX_FALLOCATE
2725                           { .ival = "1",
2726                             .oval = FIO_FALLOCATE_POSIX,
2727                             .help = "Alias for 'posix'",
2728                           },
2729 #endif
2730                 },
2731         },
2732         {
2733                 .name   = "fadvise_hint",
2734                 .lname  = "Fadvise hint",
2735                 .type   = FIO_OPT_STR,
2736                 .off1   = offsetof(struct thread_options, fadvise_hint),
2737                 .posval = {
2738                           { .ival = "0",
2739                             .oval = F_ADV_NONE,
2740                             .help = "Don't issue fadvise/madvise",
2741                           },
2742                           { .ival = "1",
2743                             .oval = F_ADV_TYPE,
2744                             .help = "Advise using fio IO pattern",
2745                           },
2746                           { .ival = "random",
2747                             .oval = F_ADV_RANDOM,
2748                             .help = "Advise using FADV_RANDOM",
2749                           },
2750                           { .ival = "sequential",
2751                             .oval = F_ADV_SEQUENTIAL,
2752                             .help = "Advise using FADV_SEQUENTIAL",
2753                           },
2754 #ifdef POSIX_FADV_NOREUSE
2755                           { .ival = "noreuse",
2756                             .oval = F_ADV_NOREUSE,
2757                             .help = "Advise using FADV_NOREUSE",
2758                           },
2759 #endif
2760                 },
2761                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2762                 .def    = "1",
2763                 .category = FIO_OPT_C_FILE,
2764                 .group  = FIO_OPT_G_INVALID,
2765         },
2766         {
2767                 .name   = "fsync",
2768                 .lname  = "Fsync",
2769                 .type   = FIO_OPT_INT,
2770                 .off1   = offsetof(struct thread_options, fsync_blocks),
2771                 .help   = "Issue fsync for writes every given number of blocks",
2772                 .def    = "0",
2773                 .interval = 1,
2774                 .category = FIO_OPT_C_FILE,
2775                 .group  = FIO_OPT_G_INVALID,
2776         },
2777         {
2778                 .name   = "fdatasync",
2779                 .lname  = "Fdatasync",
2780                 .type   = FIO_OPT_INT,
2781                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2782                 .help   = "Issue fdatasync for writes every given number of blocks",
2783                 .def    = "0",
2784                 .interval = 1,
2785                 .category = FIO_OPT_C_FILE,
2786                 .group  = FIO_OPT_G_INVALID,
2787         },
2788         {
2789                 .name   = "write_barrier",
2790                 .lname  = "Write barrier",
2791                 .type   = FIO_OPT_INT,
2792                 .off1   = offsetof(struct thread_options, barrier_blocks),
2793                 .help   = "Make every Nth write a barrier write",
2794                 .def    = "0",
2795                 .interval = 1,
2796                 .category = FIO_OPT_C_IO,
2797                 .group  = FIO_OPT_G_INVALID,
2798         },
2799 #ifdef CONFIG_SYNC_FILE_RANGE
2800         {
2801                 .name   = "sync_file_range",
2802                 .lname  = "Sync file range",
2803                 .posval = {
2804                           { .ival = "wait_before",
2805                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2806                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2807                             .orval  = 1,
2808                           },
2809                           { .ival = "write",
2810                             .oval = SYNC_FILE_RANGE_WRITE,
2811                             .help = "SYNC_FILE_RANGE_WRITE",
2812                             .orval  = 1,
2813                           },
2814                           {
2815                             .ival = "wait_after",
2816                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2817                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2818                             .orval  = 1,
2819                           },
2820                 },
2821                 .type   = FIO_OPT_STR_MULTI,
2822                 .cb     = str_sfr_cb,
2823                 .off1   = offsetof(struct thread_options, sync_file_range),
2824                 .help   = "Use sync_file_range()",
2825                 .category = FIO_OPT_C_FILE,
2826                 .group  = FIO_OPT_G_INVALID,
2827         },
2828 #else
2829         {
2830                 .name   = "sync_file_range",
2831                 .lname  = "Sync file range",
2832                 .type   = FIO_OPT_UNSUPPORTED,
2833                 .help   = "Your platform does not support sync_file_range",
2834         },
2835 #endif
2836         {
2837                 .name   = "direct",
2838                 .lname  = "Direct I/O",
2839                 .type   = FIO_OPT_BOOL,
2840                 .off1   = offsetof(struct thread_options, odirect),
2841                 .help   = "Use O_DIRECT IO (negates buffered)",
2842                 .def    = "0",
2843                 .inverse = "buffered",
2844                 .category = FIO_OPT_C_IO,
2845                 .group  = FIO_OPT_G_IO_TYPE,
2846         },
2847         {
2848                 .name   = "atomic",
2849                 .lname  = "Atomic I/O",
2850                 .type   = FIO_OPT_BOOL,
2851                 .off1   = offsetof(struct thread_options, oatomic),
2852                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2853                 .def    = "0",
2854                 .category = FIO_OPT_C_IO,
2855                 .group  = FIO_OPT_G_IO_TYPE,
2856         },
2857         {
2858                 .name   = "buffered",
2859                 .lname  = "Buffered I/O",
2860                 .type   = FIO_OPT_BOOL,
2861                 .off1   = offsetof(struct thread_options, odirect),
2862                 .neg    = 1,
2863                 .help   = "Use buffered IO (negates direct)",
2864                 .def    = "1",
2865                 .inverse = "direct",
2866                 .category = FIO_OPT_C_IO,
2867                 .group  = FIO_OPT_G_IO_TYPE,
2868         },
2869         {
2870                 .name   = "overwrite",
2871                 .lname  = "Overwrite",
2872                 .type   = FIO_OPT_BOOL,
2873                 .off1   = offsetof(struct thread_options, overwrite),
2874                 .help   = "When writing, set whether to overwrite current data",
2875                 .def    = "0",
2876                 .category = FIO_OPT_C_FILE,
2877                 .group  = FIO_OPT_G_INVALID,
2878         },
2879         {
2880                 .name   = "loops",
2881                 .lname  = "Loops",
2882                 .type   = FIO_OPT_INT,
2883                 .off1   = offsetof(struct thread_options, loops),
2884                 .help   = "Number of times to run the job",
2885                 .def    = "1",
2886                 .interval = 1,
2887                 .category = FIO_OPT_C_GENERAL,
2888                 .group  = FIO_OPT_G_RUNTIME,
2889         },
2890         {
2891                 .name   = "numjobs",
2892                 .lname  = "Number of jobs",
2893                 .type   = FIO_OPT_INT,
2894                 .off1   = offsetof(struct thread_options, numjobs),
2895                 .help   = "Duplicate this job this many times",
2896                 .def    = "1",
2897                 .interval = 1,
2898                 .category = FIO_OPT_C_GENERAL,
2899                 .group  = FIO_OPT_G_RUNTIME,
2900         },
2901         {
2902                 .name   = "startdelay",
2903                 .lname  = "Start delay",
2904                 .type   = FIO_OPT_STR_VAL_TIME,
2905                 .off1   = offsetof(struct thread_options, start_delay),
2906                 .off2   = offsetof(struct thread_options, start_delay_high),
2907                 .help   = "Only start job when this period has passed",
2908                 .def    = "0",
2909                 .is_seconds = 1,
2910                 .is_time = 1,
2911                 .category = FIO_OPT_C_GENERAL,
2912                 .group  = FIO_OPT_G_RUNTIME,
2913         },
2914         {
2915                 .name   = "runtime",
2916                 .lname  = "Runtime",
2917                 .alias  = "timeout",
2918                 .type   = FIO_OPT_STR_VAL_TIME,
2919                 .off1   = offsetof(struct thread_options, timeout),
2920                 .help   = "Stop workload when this amount of time has passed",
2921                 .def    = "0",
2922                 .is_seconds = 1,
2923                 .is_time = 1,
2924                 .category = FIO_OPT_C_GENERAL,
2925                 .group  = FIO_OPT_G_RUNTIME,
2926         },
2927         {
2928                 .name   = "time_based",
2929                 .lname  = "Time based",
2930                 .type   = FIO_OPT_STR_SET,
2931                 .off1   = offsetof(struct thread_options, time_based),
2932                 .help   = "Keep running until runtime/timeout is met",
2933                 .category = FIO_OPT_C_GENERAL,
2934                 .group  = FIO_OPT_G_RUNTIME,
2935         },
2936         {
2937                 .name   = "verify_only",
2938                 .lname  = "Verify only",
2939                 .type   = FIO_OPT_STR_SET,
2940                 .off1   = offsetof(struct thread_options, verify_only),
2941                 .help   = "Verifies previously written data is still valid",
2942                 .category = FIO_OPT_C_GENERAL,
2943                 .group  = FIO_OPT_G_RUNTIME,
2944         },
2945         {
2946                 .name   = "ramp_time",
2947                 .lname  = "Ramp time",
2948                 .type   = FIO_OPT_STR_VAL_TIME,
2949                 .off1   = offsetof(struct thread_options, ramp_time),
2950                 .help   = "Ramp up time before measuring performance",
2951                 .is_seconds = 1,
2952                 .is_time = 1,
2953                 .category = FIO_OPT_C_GENERAL,
2954                 .group  = FIO_OPT_G_RUNTIME,
2955         },
2956         {
2957                 .name   = "clocksource",
2958                 .lname  = "Clock source",
2959                 .type   = FIO_OPT_STR,
2960                 .cb     = fio_clock_source_cb,
2961                 .off1   = offsetof(struct thread_options, clocksource),
2962                 .help   = "What type of timing source to use",
2963                 .category = FIO_OPT_C_GENERAL,
2964                 .group  = FIO_OPT_G_CLOCK,
2965                 .posval = {
2966 #ifdef CONFIG_GETTIMEOFDAY
2967                           { .ival = "gettimeofday",
2968                             .oval = CS_GTOD,
2969                             .help = "Use gettimeofday(2) for timing",
2970                           },
2971 #endif
2972 #ifdef CONFIG_CLOCK_GETTIME
2973                           { .ival = "clock_gettime",
2974                             .oval = CS_CGETTIME,
2975                             .help = "Use clock_gettime(2) for timing",
2976                           },
2977 #endif
2978 #ifdef ARCH_HAVE_CPU_CLOCK
2979                           { .ival = "cpu",
2980                             .oval = CS_CPUCLOCK,
2981                             .help = "Use CPU private clock",
2982                           },
2983 #endif
2984                 },
2985         },
2986         {
2987                 .name   = "mem",
2988                 .alias  = "iomem",
2989                 .lname  = "I/O Memory",
2990                 .type   = FIO_OPT_STR,
2991                 .cb     = str_mem_cb,
2992                 .off1   = offsetof(struct thread_options, mem_type),
2993                 .help   = "Backing type for IO buffers",
2994                 .def    = "malloc",
2995                 .category = FIO_OPT_C_IO,
2996                 .group  = FIO_OPT_G_INVALID,
2997                 .posval = {
2998                           { .ival = "malloc",
2999                             .oval = MEM_MALLOC,
3000                             .help = "Use malloc(3) for IO buffers",
3001                           },
3002 #ifndef CONFIG_NO_SHM
3003                           { .ival = "shm",
3004                             .oval = MEM_SHM,
3005                             .help = "Use shared memory segments for IO buffers",
3006                           },
3007 #ifdef FIO_HAVE_HUGETLB
3008                           { .ival = "shmhuge",
3009                             .oval = MEM_SHMHUGE,
3010                             .help = "Like shm, but use huge pages",
3011                           },
3012 #endif
3013 #endif
3014                           { .ival = "mmap",
3015                             .oval = MEM_MMAP,
3016                             .help = "Use mmap(2) (file or anon) for IO buffers",
3017                           },
3018                           { .ival = "mmapshared",
3019                             .oval = MEM_MMAPSHARED,
3020                             .help = "Like mmap, but use the shared flag",
3021                           },
3022 #ifdef FIO_HAVE_HUGETLB
3023                           { .ival = "mmaphuge",
3024                             .oval = MEM_MMAPHUGE,
3025                             .help = "Like mmap, but use huge pages",
3026                           },
3027 #endif
3028 #ifdef CONFIG_CUDA
3029                           { .ival = "cudamalloc",
3030                             .oval = MEM_CUDA_MALLOC,
3031                             .help = "Allocate GPU device memory for GPUDirect RDMA",
3032                           },
3033 #endif
3034                   },
3035         },
3036         {
3037                 .name   = "iomem_align",
3038                 .alias  = "mem_align",
3039                 .lname  = "I/O memory alignment",
3040                 .type   = FIO_OPT_INT,
3041                 .off1   = offsetof(struct thread_options, mem_align),
3042                 .minval = 0,
3043                 .help   = "IO memory buffer offset alignment",
3044                 .def    = "0",
3045                 .parent = "iomem",
3046                 .hide   = 1,
3047                 .category = FIO_OPT_C_IO,
3048                 .group  = FIO_OPT_G_INVALID,
3049         },
3050         {
3051                 .name   = "verify",
3052                 .lname  = "Verify",
3053                 .type   = FIO_OPT_STR,
3054                 .off1   = offsetof(struct thread_options, verify),
3055                 .help   = "Verify data written",
3056                 .def    = "0",
3057                 .category = FIO_OPT_C_IO,
3058                 .group  = FIO_OPT_G_VERIFY,
3059                 .posval = {
3060                           { .ival = "0",
3061                             .oval = VERIFY_NONE,
3062                             .help = "Don't do IO verification",
3063                           },
3064                           { .ival = "md5",
3065                             .oval = VERIFY_MD5,
3066                             .help = "Use md5 checksums for verification",
3067                           },
3068                           { .ival = "crc64",
3069                             .oval = VERIFY_CRC64,
3070                             .help = "Use crc64 checksums for verification",
3071                           },
3072                           { .ival = "crc32",
3073                             .oval = VERIFY_CRC32,
3074                             .help = "Use crc32 checksums for verification",
3075                           },
3076                           { .ival = "crc32c-intel",
3077                             .oval = VERIFY_CRC32C,
3078                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
3079                           },
3080                           { .ival = "crc32c",
3081                             .oval = VERIFY_CRC32C,
3082                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
3083                           },
3084                           { .ival = "crc16",
3085                             .oval = VERIFY_CRC16,
3086                             .help = "Use crc16 checksums for verification",
3087                           },
3088                           { .ival = "crc7",
3089                             .oval = VERIFY_CRC7,
3090                             .help = "Use crc7 checksums for verification",
3091                           },
3092                           { .ival = "sha1",
3093                             .oval = VERIFY_SHA1,
3094                             .help = "Use sha1 checksums for verification",
3095                           },
3096                           { .ival = "sha256",
3097                             .oval = VERIFY_SHA256,
3098                             .help = "Use sha256 checksums for verification",
3099                           },
3100                           { .ival = "sha512",
3101                             .oval = VERIFY_SHA512,
3102                             .help = "Use sha512 checksums for verification",
3103                           },
3104                           { .ival = "sha3-224",
3105                             .oval = VERIFY_SHA3_224,
3106                             .help = "Use sha3-224 checksums for verification",
3107                           },
3108                           { .ival = "sha3-256",
3109                             .oval = VERIFY_SHA3_256,
3110                             .help = "Use sha3-256 checksums for verification",
3111                           },
3112                           { .ival = "sha3-384",
3113                             .oval = VERIFY_SHA3_384,
3114                             .help = "Use sha3-384 checksums for verification",
3115                           },
3116                           { .ival = "sha3-512",
3117                             .oval = VERIFY_SHA3_512,
3118                             .help = "Use sha3-512 checksums for verification",
3119                           },
3120                           { .ival = "xxhash",
3121                             .oval = VERIFY_XXHASH,
3122                             .help = "Use xxhash checksums for verification",
3123                           },
3124                           /* Meta information was included into verify_header,
3125                            * 'meta' verification is implied by default. */
3126                           { .ival = "meta",
3127                             .oval = VERIFY_HDR_ONLY,
3128                             .help = "Use io information for verification. "
3129                                     "Now is implied by default, thus option is obsolete, "
3130                                     "don't use it",
3131                           },
3132                           { .ival = "pattern",
3133                             .oval = VERIFY_PATTERN_NO_HDR,
3134                             .help = "Verify strict pattern",
3135                           },
3136                           {
3137                             .ival = "null",
3138                             .oval = VERIFY_NULL,
3139                             .help = "Pretend to verify",
3140                           },
3141                 },
3142         },
3143         {
3144                 .name   = "do_verify",
3145                 .lname  = "Perform verify step",
3146                 .type   = FIO_OPT_BOOL,
3147                 .off1   = offsetof(struct thread_options, do_verify),
3148                 .help   = "Run verification stage after write",
3149                 .def    = "1",
3150                 .parent = "verify",
3151                 .hide   = 1,
3152                 .category = FIO_OPT_C_IO,
3153                 .group  = FIO_OPT_G_VERIFY,
3154         },
3155         {
3156                 .name   = "verifysort",
3157                 .lname  = "Verify sort",
3158                 .type   = FIO_OPT_SOFT_DEPRECATED,
3159                 .category = FIO_OPT_C_IO,
3160                 .group  = FIO_OPT_G_VERIFY,
3161         },
3162         {
3163                 .name   = "verifysort_nr",
3164                 .lname  = "Verify Sort Nr",
3165                 .type   = FIO_OPT_SOFT_DEPRECATED,
3166                 .category = FIO_OPT_C_IO,
3167                 .group  = FIO_OPT_G_VERIFY,
3168         },
3169         {
3170                 .name   = "verify_interval",
3171                 .lname  = "Verify interval",
3172                 .type   = FIO_OPT_INT,
3173                 .off1   = offsetof(struct thread_options, verify_interval),
3174                 .minval = 2 * sizeof(struct verify_header),
3175                 .help   = "Store verify buffer header every N bytes",
3176                 .parent = "verify",
3177                 .hide   = 1,
3178                 .interval = 2 * sizeof(struct verify_header),
3179                 .category = FIO_OPT_C_IO,
3180                 .group  = FIO_OPT_G_VERIFY,
3181         },
3182         {
3183                 .name   = "verify_offset",
3184                 .lname  = "Verify offset",
3185                 .type   = FIO_OPT_INT,
3186                 .help   = "Offset verify header location by N bytes",
3187                 .off1   = offsetof(struct thread_options, verify_offset),
3188                 .minval = sizeof(struct verify_header),
3189                 .parent = "verify",
3190                 .hide   = 1,
3191                 .category = FIO_OPT_C_IO,
3192                 .group  = FIO_OPT_G_VERIFY,
3193         },
3194         {
3195                 .name   = "verify_pattern",
3196                 .lname  = "Verify pattern",
3197                 .type   = FIO_OPT_STR,
3198                 .cb     = str_verify_pattern_cb,
3199                 .off1   = offsetof(struct thread_options, verify_pattern),
3200                 .help   = "Fill pattern for IO buffers",
3201                 .parent = "verify",
3202                 .hide   = 1,
3203                 .category = FIO_OPT_C_IO,
3204                 .group  = FIO_OPT_G_VERIFY,
3205         },
3206         {
3207                 .name   = "verify_fatal",
3208                 .lname  = "Verify fatal",
3209                 .type   = FIO_OPT_BOOL,
3210                 .off1   = offsetof(struct thread_options, verify_fatal),
3211                 .def    = "0",
3212                 .help   = "Exit on a single verify failure, don't continue",
3213                 .parent = "verify",
3214                 .hide   = 1,
3215                 .category = FIO_OPT_C_IO,
3216                 .group  = FIO_OPT_G_VERIFY,
3217         },
3218         {
3219                 .name   = "verify_dump",
3220                 .lname  = "Verify dump",
3221                 .type   = FIO_OPT_BOOL,
3222                 .off1   = offsetof(struct thread_options, verify_dump),
3223                 .def    = "0",
3224                 .help   = "Dump contents of good and bad blocks on failure",
3225                 .parent = "verify",
3226                 .hide   = 1,
3227                 .category = FIO_OPT_C_IO,
3228                 .group  = FIO_OPT_G_VERIFY,
3229         },
3230         {
3231                 .name   = "verify_async",
3232                 .lname  = "Verify asynchronously",
3233                 .type   = FIO_OPT_INT,
3234                 .off1   = offsetof(struct thread_options, verify_async),
3235                 .def    = "0",
3236                 .help   = "Number of async verifier threads to use",
3237                 .parent = "verify",
3238                 .hide   = 1,
3239                 .category = FIO_OPT_C_IO,
3240                 .group  = FIO_OPT_G_VERIFY,
3241         },
3242         {
3243                 .name   = "verify_backlog",
3244                 .lname  = "Verify backlog",
3245                 .type   = FIO_OPT_STR_VAL,
3246                 .off1   = offsetof(struct thread_options, verify_backlog),
3247                 .help   = "Verify after this number of blocks are written",
3248                 .parent = "verify",
3249                 .hide   = 1,
3250                 .category = FIO_OPT_C_IO,
3251                 .group  = FIO_OPT_G_VERIFY,
3252         },
3253         {
3254                 .name   = "verify_backlog_batch",
3255                 .lname  = "Verify backlog batch",
3256                 .type   = FIO_OPT_INT,
3257                 .off1   = offsetof(struct thread_options, verify_batch),
3258                 .help   = "Verify this number of IO blocks",
3259                 .parent = "verify",
3260                 .hide   = 1,
3261                 .category = FIO_OPT_C_IO,
3262                 .group  = FIO_OPT_G_VERIFY,
3263         },
3264 #ifdef FIO_HAVE_CPU_AFFINITY
3265         {
3266                 .name   = "verify_async_cpus",
3267                 .lname  = "Async verify CPUs",
3268                 .type   = FIO_OPT_STR,
3269                 .cb     = str_verify_cpus_allowed_cb,
3270                 .off1   = offsetof(struct thread_options, verify_cpumask),
3271                 .help   = "Set CPUs allowed for async verify threads",
3272                 .parent = "verify_async",
3273                 .hide   = 1,
3274                 .category = FIO_OPT_C_IO,
3275                 .group  = FIO_OPT_G_VERIFY,
3276         },
3277 #else
3278         {
3279                 .name   = "verify_async_cpus",
3280                 .lname  = "Async verify CPUs",
3281                 .type   = FIO_OPT_UNSUPPORTED,
3282                 .help   = "Your platform does not support CPU affinities",
3283         },
3284 #endif
3285         {
3286                 .name   = "experimental_verify",
3287                 .lname  = "Experimental Verify",
3288                 .off1   = offsetof(struct thread_options, experimental_verify),
3289                 .type   = FIO_OPT_BOOL,
3290                 .help   = "Enable experimental verification",
3291                 .parent = "verify",
3292                 .category = FIO_OPT_C_IO,
3293                 .group  = FIO_OPT_G_VERIFY,
3294         },
3295         {
3296                 .name   = "verify_state_load",
3297                 .lname  = "Load verify state",
3298                 .off1   = offsetof(struct thread_options, verify_state),
3299                 .type   = FIO_OPT_BOOL,
3300                 .help   = "Load verify termination state",
3301                 .parent = "verify",
3302                 .category = FIO_OPT_C_IO,
3303                 .group  = FIO_OPT_G_VERIFY,
3304         },
3305         {
3306                 .name   = "verify_state_save",
3307                 .lname  = "Save verify state",
3308                 .off1   = offsetof(struct thread_options, verify_state_save),
3309                 .type   = FIO_OPT_BOOL,
3310                 .def    = "1",
3311                 .help   = "Save verify state on termination",
3312                 .parent = "verify",
3313                 .category = FIO_OPT_C_IO,
3314                 .group  = FIO_OPT_G_VERIFY,
3315         },
3316 #ifdef FIO_HAVE_TRIM
3317         {
3318                 .name   = "trim_percentage",
3319                 .lname  = "Trim percentage",
3320                 .type   = FIO_OPT_INT,
3321                 .off1   = offsetof(struct thread_options, trim_percentage),
3322                 .minval = 0,
3323                 .maxval = 100,
3324                 .help   = "Number of verify blocks to trim (i.e., discard)",
3325                 .parent = "verify",
3326                 .def    = "0",
3327                 .interval = 1,
3328                 .hide   = 1,
3329                 .category = FIO_OPT_C_IO,
3330                 .group  = FIO_OPT_G_TRIM,
3331         },
3332         {
3333                 .name   = "trim_verify_zero",
3334                 .lname  = "Verify trim zero",
3335                 .type   = FIO_OPT_BOOL,
3336                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3337                 .off1   = offsetof(struct thread_options, trim_zero),
3338                 .parent = "trim_percentage",
3339                 .hide   = 1,
3340                 .def    = "1",
3341                 .category = FIO_OPT_C_IO,
3342                 .group  = FIO_OPT_G_TRIM,
3343         },
3344         {
3345                 .name   = "trim_backlog",
3346                 .lname  = "Trim backlog",
3347                 .type   = FIO_OPT_STR_VAL,
3348                 .off1   = offsetof(struct thread_options, trim_backlog),
3349                 .help   = "Trim after this number of blocks are written",
3350                 .parent = "trim_percentage",
3351                 .hide   = 1,
3352                 .interval = 1,
3353                 .category = FIO_OPT_C_IO,
3354                 .group  = FIO_OPT_G_TRIM,
3355         },
3356         {
3357                 .name   = "trim_backlog_batch",
3358                 .lname  = "Trim backlog batch",
3359                 .type   = FIO_OPT_INT,
3360                 .off1   = offsetof(struct thread_options, trim_batch),
3361                 .help   = "Trim this number of IO blocks",
3362                 .parent = "trim_percentage",
3363                 .hide   = 1,
3364                 .interval = 1,
3365                 .category = FIO_OPT_C_IO,
3366                 .group  = FIO_OPT_G_TRIM,
3367         },
3368 #else
3369         {
3370                 .name   = "trim_percentage",
3371                 .lname  = "Trim percentage",
3372                 .type   = FIO_OPT_UNSUPPORTED,
3373                 .help   = "Fio does not support TRIM on your platform",
3374         },
3375         {
3376                 .name   = "trim_verify_zero",
3377                 .lname  = "Verify trim zero",
3378                 .type   = FIO_OPT_UNSUPPORTED,
3379                 .help   = "Fio does not support TRIM on your platform",
3380         },
3381         {
3382                 .name   = "trim_backlog",
3383                 .lname  = "Trim backlog",
3384                 .type   = FIO_OPT_UNSUPPORTED,
3385                 .help   = "Fio does not support TRIM on your platform",
3386         },
3387         {
3388                 .name   = "trim_backlog_batch",
3389                 .lname  = "Trim backlog batch",
3390                 .type   = FIO_OPT_UNSUPPORTED,
3391                 .help   = "Fio does not support TRIM on your platform",
3392         },
3393 #endif
3394         {
3395                 .name   = "write_iolog",
3396                 .lname  = "Write I/O log",
3397                 .type   = FIO_OPT_STR_STORE,
3398                 .off1   = offsetof(struct thread_options, write_iolog_file),
3399                 .help   = "Store IO pattern to file",
3400                 .category = FIO_OPT_C_IO,
3401                 .group  = FIO_OPT_G_IOLOG,
3402         },
3403         {
3404                 .name   = "read_iolog",
3405                 .lname  = "Read I/O log",
3406                 .type   = FIO_OPT_STR_STORE,
3407                 .off1   = offsetof(struct thread_options, read_iolog_file),
3408                 .help   = "Playback IO pattern from file",
3409                 .category = FIO_OPT_C_IO,
3410                 .group  = FIO_OPT_G_IOLOG,
3411         },
3412         {
3413                 .name   = "read_iolog_chunked",
3414                 .lname  = "Read I/O log in parts",
3415                 .type   = FIO_OPT_BOOL,
3416                 .off1   = offsetof(struct thread_options, read_iolog_chunked),
3417                 .def    = "0",
3418                 .parent = "read_iolog",
3419                 .help   = "Parse IO pattern in chunks",
3420                 .category = FIO_OPT_C_IO,
3421                 .group  = FIO_OPT_G_IOLOG,
3422         },
3423         {
3424                 .name   = "replay_no_stall",
3425                 .lname  = "Don't stall on replay",
3426                 .type   = FIO_OPT_BOOL,
3427                 .off1   = offsetof(struct thread_options, no_stall),
3428                 .def    = "0",
3429                 .parent = "read_iolog",
3430                 .hide   = 1,
3431                 .help   = "Playback IO pattern file as fast as possible without stalls",
3432                 .category = FIO_OPT_C_IO,
3433                 .group  = FIO_OPT_G_IOLOG,
3434         },
3435         {
3436                 .name   = "replay_redirect",
3437                 .lname  = "Redirect device for replay",
3438                 .type   = FIO_OPT_STR_STORE,
3439                 .off1   = offsetof(struct thread_options, replay_redirect),
3440                 .parent = "read_iolog",
3441                 .hide   = 1,
3442                 .help   = "Replay all I/O onto this device, regardless of trace device",
3443                 .category = FIO_OPT_C_IO,
3444                 .group  = FIO_OPT_G_IOLOG,
3445         },
3446         {
3447                 .name   = "replay_scale",
3448                 .lname  = "Replace offset scale factor",
3449                 .type   = FIO_OPT_INT,
3450                 .off1   = offsetof(struct thread_options, replay_scale),
3451                 .parent = "read_iolog",
3452                 .def    = "1",
3453                 .help   = "Align offsets to this blocksize",
3454                 .category = FIO_OPT_C_IO,
3455                 .group  = FIO_OPT_G_IOLOG,
3456         },
3457         {
3458                 .name   = "replay_align",
3459                 .lname  = "Replace alignment",
3460                 .type   = FIO_OPT_INT,
3461                 .off1   = offsetof(struct thread_options, replay_align),
3462                 .parent = "read_iolog",
3463                 .help   = "Scale offset down by this factor",
3464                 .category = FIO_OPT_C_IO,
3465                 .group  = FIO_OPT_G_IOLOG,
3466                 .pow2   = 1,
3467         },
3468         {
3469                 .name   = "replay_time_scale",
3470                 .lname  = "Replay Time Scale",
3471                 .type   = FIO_OPT_INT,
3472                 .off1   = offsetof(struct thread_options, replay_time_scale),
3473                 .def    = "100",
3474                 .minval = 1,
3475                 .parent = "read_iolog",
3476                 .hide   = 1,
3477                 .help   = "Scale time for replay events",
3478                 .category = FIO_OPT_C_IO,
3479                 .group  = FIO_OPT_G_IOLOG,
3480         },
3481         {
3482                 .name   = "replay_skip",
3483                 .lname  = "Replay Skip",
3484                 .type   = FIO_OPT_STR,
3485                 .cb     = str_replay_skip_cb,
3486                 .off1   = offsetof(struct thread_options, replay_skip),
3487                 .parent = "read_iolog",
3488                 .help   = "Skip certain IO types (read,write,trim,flush)",
3489                 .category = FIO_OPT_C_IO,
3490                 .group  = FIO_OPT_G_IOLOG,
3491         },
3492         {
3493                 .name   = "merge_blktrace_file",
3494                 .lname  = "Merged blktrace output filename",
3495                 .type   = FIO_OPT_STR_STORE,
3496                 .off1   = offsetof(struct thread_options, merge_blktrace_file),
3497                 .help   = "Merged blktrace output filename",
3498                 .category = FIO_OPT_C_IO,
3499                 .group = FIO_OPT_G_IOLOG,
3500         },
3501         {
3502                 .name   = "merge_blktrace_scalars",
3503                 .lname  = "Percentage to scale each trace",
3504                 .type   = FIO_OPT_FLOAT_LIST,
3505                 .off1   = offsetof(struct thread_options, merge_blktrace_scalars),
3506                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3507                 .help   = "Percentage to scale each trace",
3508                 .category = FIO_OPT_C_IO,
3509                 .group  = FIO_OPT_G_IOLOG,
3510         },
3511         {
3512                 .name   = "merge_blktrace_iters",
3513                 .lname  = "Number of iterations to run per trace",
3514                 .type   = FIO_OPT_FLOAT_LIST,
3515                 .off1   = offsetof(struct thread_options, merge_blktrace_iters),
3516                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3517                 .help   = "Number of iterations to run per trace",
3518                 .category = FIO_OPT_C_IO,
3519                 .group  = FIO_OPT_G_IOLOG,
3520         },
3521         {
3522                 .name   = "exec_prerun",
3523                 .lname  = "Pre-execute runnable",
3524                 .type   = FIO_OPT_STR_STORE,
3525                 .off1   = offsetof(struct thread_options, exec_prerun),
3526                 .help   = "Execute this file prior to running job",
3527                 .category = FIO_OPT_C_GENERAL,
3528                 .group  = FIO_OPT_G_INVALID,
3529         },
3530         {
3531                 .name   = "exec_postrun",
3532                 .lname  = "Post-execute runnable",
3533                 .type   = FIO_OPT_STR_STORE,
3534                 .off1   = offsetof(struct thread_options, exec_postrun),
3535                 .help   = "Execute this file after running job",
3536                 .category = FIO_OPT_C_GENERAL,
3537                 .group  = FIO_OPT_G_INVALID,
3538         },
3539 #ifdef FIO_HAVE_IOSCHED_SWITCH
3540         {
3541                 .name   = "ioscheduler",
3542                 .lname  = "I/O scheduler",
3543                 .type   = FIO_OPT_STR_STORE,
3544                 .off1   = offsetof(struct thread_options, ioscheduler),
3545                 .help   = "Use this IO scheduler on the backing device",
3546                 .category = FIO_OPT_C_FILE,
3547                 .group  = FIO_OPT_G_INVALID,
3548         },
3549 #else
3550         {
3551                 .name   = "ioscheduler",
3552                 .lname  = "I/O scheduler",
3553                 .type   = FIO_OPT_UNSUPPORTED,
3554                 .help   = "Your platform does not support IO scheduler switching",
3555         },
3556 #endif
3557         {
3558                 .name   = "zonemode",
3559                 .lname  = "Zone mode",
3560                 .help   = "Mode for the zonesize, zonerange and zoneskip parameters",
3561                 .type   = FIO_OPT_STR,
3562                 .off1   = offsetof(struct thread_options, zone_mode),
3563                 .def    = "none",
3564                 .category = FIO_OPT_C_IO,
3565                 .group  = FIO_OPT_G_ZONE,
3566                 .posval = {
3567                            { .ival = "none",
3568                              .oval = ZONE_MODE_NONE,
3569                              .help = "no zoning",
3570                            },
3571                            { .ival = "strided",
3572                              .oval = ZONE_MODE_STRIDED,
3573                              .help = "strided mode - random I/O is restricted to a single zone",
3574                            },
3575                            { .ival = "zbd",
3576                              .oval = ZONE_MODE_ZBD,
3577                              .help = "zoned block device mode - random I/O selects one of multiple zones randomly",
3578                            },
3579                 },
3580         },
3581         {
3582                 .name   = "zonesize",
3583                 .lname  = "Zone size",
3584                 .type   = FIO_OPT_STR_VAL,
3585                 .off1   = offsetof(struct thread_options, zone_size),
3586                 .help   = "Amount of data to read per zone",
3587                 .def    = "0",
3588                 .interval = 1024 * 1024,
3589                 .category = FIO_OPT_C_IO,
3590                 .group  = FIO_OPT_G_ZONE,
3591         },
3592         {
3593                 .name   = "zonecapacity",
3594                 .lname  = "Zone capacity",
3595                 .type   = FIO_OPT_STR_VAL,
3596                 .off1   = offsetof(struct thread_options, zone_capacity),
3597                 .help   = "Capacity per zone",
3598                 .def    = "0",
3599                 .interval = 1024 * 1024,
3600                 .category = FIO_OPT_C_IO,
3601                 .group  = FIO_OPT_G_ZONE,
3602         },
3603         {
3604                 .name   = "zonerange",
3605                 .lname  = "Zone range",
3606                 .type   = FIO_OPT_STR_VAL,
3607                 .off1   = offsetof(struct thread_options, zone_range),
3608                 .help   = "Give size of an IO zone",
3609                 .def    = "0",
3610                 .interval = 1024 * 1024,
3611                 .category = FIO_OPT_C_IO,
3612                 .group  = FIO_OPT_G_ZONE,
3613         },
3614         {
3615                 .name   = "zoneskip",
3616                 .lname  = "Zone skip",
3617                 .type   = FIO_OPT_STR_VAL_ZONE,
3618                 .cb     = str_zoneskip_cb,
3619                 .off1   = offsetof(struct thread_options, zone_skip),
3620                 .help   = "Space between IO zones",
3621                 .def    = "0",
3622                 .category = FIO_OPT_C_IO,
3623                 .group  = FIO_OPT_G_ZONE,
3624         },
3625         {
3626                 .name   = "read_beyond_wp",
3627                 .lname  = "Allow reads beyond the zone write pointer",
3628                 .type   = FIO_OPT_BOOL,
3629                 .off1   = offsetof(struct thread_options, read_beyond_wp),
3630                 .help   = "Allow reads beyond the zone write pointer",
3631                 .def    = "0",
3632                 .category = FIO_OPT_C_IO,
3633                 .group  = FIO_OPT_G_INVALID,
3634         },
3635         {
3636                 .name   = "max_open_zones",
3637                 .lname  = "Per device/file maximum number of open zones",
3638                 .type   = FIO_OPT_INT,
3639                 .off1   = offsetof(struct thread_options, max_open_zones),
3640                 .maxval = ZBD_MAX_WRITE_ZONES,
3641                 .help   = "Limit on the number of simultaneously opened sequential write zones with zonemode=zbd",
3642                 .def    = "0",
3643                 .category = FIO_OPT_C_IO,
3644                 .group  = FIO_OPT_G_INVALID,
3645         },
3646         {
3647                 .name   = "job_max_open_zones",
3648                 .lname  = "Job maximum number of open zones",
3649                 .type   = FIO_OPT_INT,
3650                 .off1   = offsetof(struct thread_options, job_max_open_zones),
3651                 .maxval = ZBD_MAX_WRITE_ZONES,
3652                 .help   = "Limit on the number of simultaneously opened sequential write zones with zonemode=zbd by one thread/process",
3653                 .def    = "0",
3654                 .category = FIO_OPT_C_IO,
3655                 .group  = FIO_OPT_G_INVALID,
3656         },
3657         {
3658                 .name   = "ignore_zone_limits",
3659                 .lname  = "Ignore zone resource limits",
3660                 .type   = FIO_OPT_BOOL,
3661                 .off1   = offsetof(struct thread_options, ignore_zone_limits),
3662                 .def    = "0",
3663                 .help   = "Ignore the zone resource limits (max open/active zones) reported by the device",
3664                 .category = FIO_OPT_C_IO,
3665                 .group  = FIO_OPT_G_INVALID,
3666         },
3667         {
3668                 .name   = "zone_reset_threshold",
3669                 .lname  = "Zone reset threshold",
3670                 .help   = "Zoned block device reset threshold",
3671                 .type   = FIO_OPT_FLOAT_LIST,
3672                 .maxlen = 1,
3673                 .off1   = offsetof(struct thread_options, zrt),
3674                 .minfp  = 0,
3675                 .maxfp  = 1,
3676                 .category = FIO_OPT_C_IO,
3677                 .group  = FIO_OPT_G_ZONE,
3678         },
3679         {
3680                 .name   = "zone_reset_frequency",
3681                 .lname  = "Zone reset frequency",
3682                 .help   = "Zoned block device zone reset frequency in HZ",
3683                 .type   = FIO_OPT_FLOAT_LIST,
3684                 .maxlen = 1,
3685                 .off1   = offsetof(struct thread_options, zrf),
3686                 .minfp  = 0,
3687                 .maxfp  = 1,
3688                 .category = FIO_OPT_C_IO,
3689                 .group  = FIO_OPT_G_ZONE,
3690         },
3691         {
3692                 .name   = "fdp",
3693                 .lname  = "Flexible data placement",
3694                 .type   = FIO_OPT_BOOL,
3695                 .off1   = offsetof(struct thread_options, fdp),
3696                 .help   = "Use Data placement directive (FDP)",
3697                 .def    = "0",
3698                 .category = FIO_OPT_C_IO,
3699                 .group  = FIO_OPT_G_INVALID,
3700         },
3701         {
3702                 .name   = "fdp_pli_select",
3703                 .lname  = "FDP Placement ID select",
3704                 .type   = FIO_OPT_STR,
3705                 .off1   = offsetof(struct thread_options, fdp_pli_select),
3706                 .help   = "Select which FDP placement ID to use next",
3707                 .def    = "roundrobin",
3708                 .category = FIO_OPT_C_IO,
3709                 .group  = FIO_OPT_G_INVALID,
3710                 .posval = {
3711                           { .ival = "random",
3712                             .oval = FIO_FDP_RANDOM,
3713                             .help = "Choose a Placement ID at random (uniform)",
3714                           },
3715                           { .ival = "roundrobin",
3716                             .oval = FIO_FDP_RR,
3717                             .help = "Round robin select Placement IDs",
3718                           },
3719                 },
3720         },
3721         {
3722                 .name   = "fdp_pli",
3723                 .lname  = "FDP Placement ID indicies",
3724                 .type   = FIO_OPT_STR,
3725                 .cb     = str_fdp_pli_cb,
3726                 .off1   = offsetof(struct thread_options, fdp_plis),
3727                 .help   = "Sets which placement ids to use (defaults to all)",
3728                 .hide   = 1,
3729                 .category = FIO_OPT_C_IO,
3730                 .group  = FIO_OPT_G_INVALID,
3731         },
3732         {
3733                 .name   = "lockmem",
3734                 .lname  = "Lock memory",
3735                 .type   = FIO_OPT_STR_VAL,
3736                 .off1   = offsetof(struct thread_options, lockmem),
3737                 .help   = "Lock down this amount of memory (per worker)",
3738                 .def    = "0",
3739                 .interval = 1024 * 1024,
3740                 .category = FIO_OPT_C_GENERAL,
3741                 .group  = FIO_OPT_G_INVALID,
3742         },
3743         {
3744                 .name   = "rwmixread",
3745                 .lname  = "Read/write mix read",
3746                 .type   = FIO_OPT_INT,
3747                 .cb     = str_rwmix_read_cb,
3748                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3749                 .maxval = 100,
3750                 .help   = "Percentage of mixed workload that is reads",
3751                 .def    = "50",
3752                 .interval = 5,
3753                 .inverse = "rwmixwrite",
3754                 .category = FIO_OPT_C_IO,
3755                 .group  = FIO_OPT_G_RWMIX,
3756         },
3757         {
3758                 .name   = "rwmixwrite",
3759                 .lname  = "Read/write mix write",
3760                 .type   = FIO_OPT_INT,
3761                 .cb     = str_rwmix_write_cb,
3762                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3763                 .maxval = 100,
3764                 .help   = "Percentage of mixed workload that is writes",
3765                 .def    = "50",
3766                 .interval = 5,
3767                 .inverse = "rwmixread",
3768                 .category = FIO_OPT_C_IO,
3769                 .group  = FIO_OPT_G_RWMIX,
3770         },
3771         {
3772                 .name   = "rwmixcycle",
3773                 .lname  = "Read/write mix cycle",
3774                 .type   = FIO_OPT_DEPRECATED,
3775                 .category = FIO_OPT_C_IO,
3776                 .group  = FIO_OPT_G_RWMIX,
3777         },
3778         {
3779                 .name   = "nice",
3780                 .lname  = "Nice",
3781                 .type   = FIO_OPT_INT,
3782                 .off1   = offsetof(struct thread_options, nice),
3783                 .help   = "Set job CPU nice value",
3784                 .minval = -20,
3785                 .maxval = 19,
3786                 .def    = "0",
3787                 .interval = 1,
3788                 .category = FIO_OPT_C_GENERAL,
3789                 .group  = FIO_OPT_G_CRED,
3790         },
3791 #ifdef FIO_HAVE_IOPRIO
3792         {
3793                 .name   = "prio",
3794                 .lname  = "I/O nice priority",
3795                 .type   = FIO_OPT_INT,
3796                 .off1   = offsetof(struct thread_options, ioprio),
3797                 .help   = "Set job IO priority value",
3798                 .minval = IOPRIO_MIN_PRIO,
3799                 .maxval = IOPRIO_MAX_PRIO,
3800                 .interval = 1,
3801                 .category = FIO_OPT_C_GENERAL,
3802                 .group  = FIO_OPT_G_CRED,
3803         },
3804 #else
3805         {
3806                 .name   = "prio",
3807                 .lname  = "I/O nice priority",
3808                 .type   = FIO_OPT_UNSUPPORTED,
3809                 .help   = "Your platform does not support IO priorities",
3810         },
3811 #endif
3812 #ifdef FIO_HAVE_IOPRIO_CLASS
3813 #ifndef FIO_HAVE_IOPRIO
3814 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3815 #endif
3816         {
3817                 .name   = "prioclass",
3818                 .lname  = "I/O nice priority class",
3819                 .type   = FIO_OPT_INT,
3820                 .off1   = offsetof(struct thread_options, ioprio_class),
3821                 .help   = "Set job IO priority class",
3822                 .minval = IOPRIO_MIN_PRIO_CLASS,
3823                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3824                 .interval = 1,
3825                 .category = FIO_OPT_C_GENERAL,
3826                 .group  = FIO_OPT_G_CRED,
3827         },
3828         {
3829                 .name   = "priohint",
3830                 .lname  = "I/O nice priority hint",
3831                 .type   = FIO_OPT_INT,
3832                 .off1   = offsetof(struct thread_options, ioprio_hint),
3833                 .help   = "Set job IO priority hint",
3834                 .minval = IOPRIO_MIN_PRIO_HINT,
3835                 .maxval = IOPRIO_MAX_PRIO_HINT,
3836                 .interval = 1,
3837                 .category = FIO_OPT_C_GENERAL,
3838                 .group  = FIO_OPT_G_CRED,
3839         },
3840 #else
3841         {
3842                 .name   = "prioclass",
3843                 .lname  = "I/O nice priority class",
3844                 .type   = FIO_OPT_UNSUPPORTED,
3845                 .help   = "Your platform does not support IO priority classes",
3846         },
3847         {
3848                 .name   = "priohint",
3849                 .lname  = "I/O nice priority hint",
3850                 .type   = FIO_OPT_UNSUPPORTED,
3851                 .help   = "Your platform does not support IO priority hints",
3852         },
3853 #endif
3854         {
3855                 .name   = "thinktime",
3856                 .lname  = "Thinktime",
3857                 .type   = FIO_OPT_INT,
3858                 .off1   = offsetof(struct thread_options, thinktime),
3859                 .help   = "Idle time between IO buffers (usec)",
3860                 .def    = "0",
3861                 .is_time = 1,
3862                 .category = FIO_OPT_C_IO,
3863                 .group  = FIO_OPT_G_THINKTIME,
3864         },
3865         {
3866                 .name   = "thinktime_spin",
3867                 .lname  = "Thinktime spin",
3868                 .type   = FIO_OPT_INT,
3869                 .off1   = offsetof(struct thread_options, thinktime_spin),
3870                 .help   = "Start think time by spinning this amount (usec)",
3871                 .def    = "0",
3872                 .is_time = 1,
3873                 .parent = "thinktime",
3874                 .hide   = 1,
3875                 .category = FIO_OPT_C_IO,
3876                 .group  = FIO_OPT_G_THINKTIME,
3877         },
3878         {
3879                 .name   = "thinktime_blocks",
3880                 .lname  = "Thinktime blocks",
3881                 .type   = FIO_OPT_INT,
3882                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3883                 .help   = "IO buffer period between 'thinktime'",
3884                 .def    = "1",
3885                 .parent = "thinktime",
3886                 .hide   = 1,
3887                 .category = FIO_OPT_C_IO,
3888                 .group  = FIO_OPT_G_THINKTIME,
3889         },
3890         {
3891                 .name   = "thinktime_blocks_type",
3892                 .lname  = "Thinktime blocks type",
3893                 .type   = FIO_OPT_STR,
3894                 .off1   = offsetof(struct thread_options, thinktime_blocks_type),
3895                 .help   = "How thinktime_blocks takes effect",
3896                 .def    = "complete",
3897                 .category = FIO_OPT_C_IO,
3898                 .group  = FIO_OPT_G_THINKTIME,
3899                 .posval = {
3900                           { .ival = "complete",
3901                             .oval = THINKTIME_BLOCKS_TYPE_COMPLETE,
3902                             .help = "thinktime_blocks takes effect at the completion side",
3903                           },
3904                           {
3905                             .ival = "issue",
3906                             .oval = THINKTIME_BLOCKS_TYPE_ISSUE,
3907                             .help = "thinktime_blocks takes effect at the issue side",
3908                           },
3909                 },
3910                 .parent = "thinktime",
3911         },
3912         {
3913                 .name   = "thinktime_iotime",
3914                 .lname  = "Thinktime interval",
3915                 .type   = FIO_OPT_INT,
3916                 .off1   = offsetof(struct thread_options, thinktime_iotime),
3917                 .help   = "IO time interval between 'thinktime'",
3918                 .def    = "0",
3919                 .parent = "thinktime",
3920                 .hide   = 1,
3921                 .is_seconds = 1,
3922                 .is_time = 1,
3923                 .category = FIO_OPT_C_IO,
3924                 .group  = FIO_OPT_G_THINKTIME,
3925         },
3926         {
3927                 .name   = "rate",
3928                 .lname  = "I/O rate",
3929                 .type   = FIO_OPT_ULL,
3930                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3931                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3932                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3933                 .help   = "Set bandwidth rate",
3934                 .category = FIO_OPT_C_IO,
3935                 .group  = FIO_OPT_G_RATE,
3936         },
3937         {
3938                 .name   = "rate_min",
3939                 .alias  = "ratemin",
3940                 .lname  = "I/O min rate",
3941                 .type   = FIO_OPT_ULL,
3942                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3943                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3944                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3945                 .help   = "Job must meet this rate or it will be shutdown",
3946                 .parent = "rate",
3947                 .hide   = 1,
3948                 .category = FIO_OPT_C_IO,
3949                 .group  = FIO_OPT_G_RATE,
3950         },
3951         {
3952                 .name   = "rate_iops",
3953                 .lname  = "I/O rate IOPS",
3954                 .type   = FIO_OPT_INT,
3955                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3956                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3957                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3958                 .help   = "Limit IO used to this number of IO operations/sec",
3959                 .hide   = 1,
3960                 .category = FIO_OPT_C_IO,
3961                 .group  = FIO_OPT_G_RATE,
3962         },
3963         {
3964                 .name   = "rate_iops_min",
3965                 .lname  = "I/O min rate IOPS",
3966                 .type   = FIO_OPT_INT,
3967                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3968                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3969                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3970                 .help   = "Job must meet this rate or it will be shut down",
3971                 .parent = "rate_iops",
3972                 .hide   = 1,
3973                 .category = FIO_OPT_C_IO,
3974                 .group  = FIO_OPT_G_RATE,
3975         },
3976         {
3977                 .name   = "rate_process",
3978                 .lname  = "Rate Process",
3979                 .type   = FIO_OPT_STR,
3980                 .off1   = offsetof(struct thread_options, rate_process),
3981                 .help   = "What process controls how rated IO is managed",
3982                 .def    = "linear",
3983                 .category = FIO_OPT_C_IO,
3984                 .group  = FIO_OPT_G_RATE,
3985                 .posval = {
3986                           { .ival = "linear",
3987                             .oval = RATE_PROCESS_LINEAR,
3988                             .help = "Linear rate of IO",
3989                           },
3990                           {
3991                             .ival = "poisson",
3992                             .oval = RATE_PROCESS_POISSON,
3993                             .help = "Rate follows Poisson process",
3994                           },
3995                 },
3996                 .parent = "rate",
3997         },
3998         {
3999                 .name   = "rate_cycle",
4000                 .alias  = "ratecycle",
4001                 .lname  = "I/O rate cycle",
4002                 .type   = FIO_OPT_INT,
4003                 .off1   = offsetof(struct thread_options, ratecycle),
4004                 .help   = "Window average for rate limits (msec)",
4005                 .def    = "1000",
4006                 .parent = "rate",
4007                 .hide   = 1,
4008                 .category = FIO_OPT_C_IO,
4009                 .group  = FIO_OPT_G_RATE,
4010         },
4011         {
4012                 .name   = "rate_ignore_thinktime",
4013                 .lname  = "Rate ignore thinktime",
4014                 .type   = FIO_OPT_BOOL,
4015                 .off1   = offsetof(struct thread_options, rate_ign_think),
4016                 .help   = "Rated IO ignores thinktime settings",
4017                 .parent = "rate",
4018                 .category = FIO_OPT_C_IO,
4019                 .group  = FIO_OPT_G_RATE,
4020         },
4021         {
4022                 .name   = "max_latency",
4023                 .lname  = "Max Latency (usec)",
4024                 .type   = FIO_OPT_ULL,
4025                 .off1   = offsetof(struct thread_options, max_latency[DDIR_READ]),
4026                 .off2   = offsetof(struct thread_options, max_latency[DDIR_WRITE]),
4027                 .off3   = offsetof(struct thread_options, max_latency[DDIR_TRIM]),
4028                 .help   = "Maximum tolerated IO latency (usec)",
4029                 .is_time = 1,
4030                 .category = FIO_OPT_C_IO,
4031                 .group = FIO_OPT_G_LATPROF,
4032         },
4033         {
4034                 .name   = "latency_target",
4035                 .lname  = "Latency Target (usec)",
4036                 .type   = FIO_OPT_STR_VAL_TIME,
4037                 .off1   = offsetof(struct thread_options, latency_target),
4038                 .help   = "Ramp to max queue depth supporting this latency",
4039                 .is_time = 1,
4040                 .category = FIO_OPT_C_IO,
4041                 .group  = FIO_OPT_G_LATPROF,
4042         },
4043         {
4044                 .name   = "latency_window",
4045                 .lname  = "Latency Window (usec)",
4046                 .type   = FIO_OPT_STR_VAL_TIME,
4047                 .off1   = offsetof(struct thread_options, latency_window),
4048                 .help   = "Time to sustain latency_target",
4049                 .is_time = 1,
4050                 .category = FIO_OPT_C_IO,
4051                 .group  = FIO_OPT_G_LATPROF,
4052         },
4053         {
4054                 .name   = "latency_percentile",
4055                 .lname  = "Latency Percentile",
4056                 .type   = FIO_OPT_FLOAT_LIST,
4057                 .off1   = offsetof(struct thread_options, latency_percentile),
4058                 .help   = "Percentile of IOs must be below latency_target",
4059                 .def    = "100",
4060                 .maxlen = 1,
4061                 .minfp  = 0.0,
4062                 .maxfp  = 100.0,
4063                 .category = FIO_OPT_C_IO,
4064                 .group  = FIO_OPT_G_LATPROF,
4065         },
4066         {
4067                 .name   = "latency_run",
4068                 .lname  = "Latency Run",
4069                 .type   = FIO_OPT_BOOL,
4070                 .off1   = offsetof(struct thread_options, latency_run),
4071                 .help   = "Keep adjusting queue depth to match latency_target",
4072                 .def    = "0",
4073                 .category = FIO_OPT_C_IO,
4074                 .group  = FIO_OPT_G_LATPROF,
4075         },
4076         {
4077                 .name   = "invalidate",
4078                 .lname  = "Cache invalidate",
4079                 .type   = FIO_OPT_BOOL,
4080                 .off1   = offsetof(struct thread_options, invalidate_cache),
4081                 .help   = "Invalidate buffer/page cache prior to running job",
4082                 .def    = "1",
4083                 .category = FIO_OPT_C_IO,
4084                 .group  = FIO_OPT_G_IO_TYPE,
4085         },
4086         {
4087                 .name   = "sync",
4088                 .lname  = "Synchronous I/O",
4089                 .type   = FIO_OPT_STR,
4090                 .off1   = offsetof(struct thread_options, sync_io),
4091                 .help   = "Use synchronous write IO",
4092                 .def    = "none",
4093                 .hide   = 1,
4094                 .category = FIO_OPT_C_IO,
4095                 .group  = FIO_OPT_G_IO_TYPE,
4096                 .posval = {
4097                           { .ival = "none",
4098                             .oval = 0,
4099                           },
4100                           { .ival = "0",
4101                             .oval = 0,
4102                           },
4103                           { .ival = "sync",
4104                             .oval = O_SYNC,
4105                           },
4106                           { .ival = "1",
4107                             .oval = O_SYNC,
4108                           },
4109 #ifdef O_DSYNC
4110                           { .ival = "dsync",
4111                             .oval = O_DSYNC,
4112                           },
4113 #endif
4114                 },
4115         },
4116 #ifdef FIO_HAVE_WRITE_HINT
4117         {
4118                 .name   = "write_hint",
4119                 .lname  = "Write hint",
4120                 .type   = FIO_OPT_STR,
4121                 .off1   = offsetof(struct thread_options, write_hint),
4122                 .help   = "Set expected write life time",
4123                 .category = FIO_OPT_C_ENGINE,
4124                 .group  = FIO_OPT_G_INVALID,
4125                 .posval = {
4126                           { .ival = "none",
4127                             .oval = RWH_WRITE_LIFE_NONE,
4128                           },
4129                           { .ival = "short",
4130                             .oval = RWH_WRITE_LIFE_SHORT,
4131                           },
4132                           { .ival = "medium",
4133                             .oval = RWH_WRITE_LIFE_MEDIUM,
4134                           },
4135                           { .ival = "long",
4136                             .oval = RWH_WRITE_LIFE_LONG,
4137                           },
4138                           { .ival = "extreme",
4139                             .oval = RWH_WRITE_LIFE_EXTREME,
4140                           },
4141                 },
4142         },
4143 #endif
4144         {
4145                 .name   = "create_serialize",
4146                 .lname  = "Create serialize",
4147                 .type   = FIO_OPT_BOOL,
4148                 .off1   = offsetof(struct thread_options, create_serialize),
4149                 .help   = "Serialize creation of job files",
4150                 .def    = "1",
4151                 .category = FIO_OPT_C_FILE,
4152                 .group  = FIO_OPT_G_INVALID,
4153         },
4154         {
4155                 .name   = "create_fsync",
4156                 .lname  = "Create fsync",
4157                 .type   = FIO_OPT_BOOL,
4158                 .off1   = offsetof(struct thread_options, create_fsync),
4159                 .help   = "fsync file after creation",
4160                 .def    = "1",
4161                 .category = FIO_OPT_C_FILE,
4162                 .group  = FIO_OPT_G_INVALID,
4163         },
4164         {
4165                 .name   = "create_on_open",
4166                 .lname  = "Create on open",
4167                 .type   = FIO_OPT_BOOL,
4168                 .off1   = offsetof(struct thread_options, create_on_open),
4169                 .help   = "Create files when they are opened for IO",
4170                 .def    = "0",
4171                 .category = FIO_OPT_C_FILE,
4172                 .group  = FIO_OPT_G_INVALID,
4173         },
4174         {
4175                 .name   = "create_only",
4176                 .lname  = "Create Only",
4177                 .type   = FIO_OPT_BOOL,
4178                 .off1   = offsetof(struct thread_options, create_only),
4179                 .help   = "Only perform file creation phase",
4180                 .category = FIO_OPT_C_FILE,
4181                 .def    = "0",
4182         },
4183         {
4184                 .name   = "allow_file_create",
4185                 .lname  = "Allow file create",
4186                 .type   = FIO_OPT_BOOL,
4187                 .off1   = offsetof(struct thread_options, allow_create),
4188                 .help   = "Permit fio to create files, if they don't exist",
4189                 .def    = "1",
4190                 .category = FIO_OPT_C_FILE,
4191                 .group  = FIO_OPT_G_FILENAME,
4192         },
4193         {
4194                 .name   = "allow_mounted_write",
4195                 .lname  = "Allow mounted write",
4196                 .type   = FIO_OPT_BOOL,
4197                 .off1   = offsetof(struct thread_options, allow_mounted_write),
4198                 .help   = "Allow writes to a mounted partition",
4199                 .def    = "0",
4200                 .category = FIO_OPT_C_FILE,
4201                 .group  = FIO_OPT_G_FILENAME,
4202         },
4203         {
4204                 .name   = "pre_read",
4205                 .lname  = "Pre-read files",
4206                 .type   = FIO_OPT_BOOL,
4207                 .off1   = offsetof(struct thread_options, pre_read),
4208                 .help   = "Pre-read files before starting official testing",
4209                 .def    = "0",
4210                 .category = FIO_OPT_C_FILE,
4211                 .group  = FIO_OPT_G_INVALID,
4212         },
4213 #ifdef FIO_HAVE_CPU_AFFINITY
4214         {
4215                 .name   = "cpumask",
4216                 .lname  = "CPU mask",
4217                 .type   = FIO_OPT_INT,
4218                 .cb     = str_cpumask_cb,
4219                 .off1   = offsetof(struct thread_options, cpumask),
4220                 .help   = "CPU affinity mask",
4221                 .category = FIO_OPT_C_GENERAL,
4222                 .group  = FIO_OPT_G_CRED,
4223         },
4224         {
4225                 .name   = "cpus_allowed",
4226                 .lname  = "CPUs allowed",
4227                 .type   = FIO_OPT_STR,
4228                 .cb     = str_cpus_allowed_cb,
4229                 .off1   = offsetof(struct thread_options, cpumask),
4230                 .help   = "Set CPUs allowed",
4231                 .category = FIO_OPT_C_GENERAL,
4232                 .group  = FIO_OPT_G_CRED,
4233         },
4234         {
4235                 .name   = "cpus_allowed_policy",
4236                 .lname  = "CPUs allowed distribution policy",
4237                 .type   = FIO_OPT_STR,
4238                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
4239                 .help   = "Distribution policy for cpus_allowed",
4240                 .parent = "cpus_allowed",
4241                 .prio   = 1,
4242                 .posval = {
4243                           { .ival = "shared",
4244                             .oval = FIO_CPUS_SHARED,
4245                             .help = "Mask shared between threads",
4246                           },
4247                           { .ival = "split",
4248                             .oval = FIO_CPUS_SPLIT,
4249                             .help = "Mask split between threads",
4250                           },
4251                 },
4252                 .category = FIO_OPT_C_GENERAL,
4253                 .group  = FIO_OPT_G_CRED,
4254         },
4255 #else
4256         {
4257                 .name   = "cpumask",
4258                 .lname  = "CPU mask",
4259                 .type   = FIO_OPT_UNSUPPORTED,
4260                 .help   = "Your platform does not support CPU affinities",
4261         },
4262         {
4263                 .name   = "cpus_allowed",
4264                 .lname  = "CPUs allowed",
4265                 .type   = FIO_OPT_UNSUPPORTED,
4266                 .help   = "Your platform does not support CPU affinities",
4267         },
4268         {
4269                 .name   = "cpus_allowed_policy",
4270                 .lname  = "CPUs allowed distribution policy",
4271                 .type   = FIO_OPT_UNSUPPORTED,
4272                 .help   = "Your platform does not support CPU affinities",
4273         },
4274 #endif
4275 #ifdef CONFIG_LIBNUMA
4276         {
4277                 .name   = "numa_cpu_nodes",
4278                 .lname  = "NUMA CPU Nodes",
4279                 .type   = FIO_OPT_STR,
4280                 .cb     = str_numa_cpunodes_cb,
4281                 .off1   = offsetof(struct thread_options, numa_cpunodes),
4282                 .help   = "NUMA CPU nodes bind",
4283                 .category = FIO_OPT_C_GENERAL,
4284                 .group  = FIO_OPT_G_INVALID,
4285         },
4286         {
4287                 .name   = "numa_mem_policy",
4288                 .lname  = "NUMA Memory Policy",
4289                 .type   = FIO_OPT_STR,
4290                 .cb     = str_numa_mpol_cb,
4291                 .off1   = offsetof(struct thread_options, numa_memnodes),
4292                 .help   = "NUMA memory policy setup",
4293                 .category = FIO_OPT_C_GENERAL,
4294                 .group  = FIO_OPT_G_INVALID,
4295         },
4296 #else
4297         {
4298                 .name   = "numa_cpu_nodes",
4299                 .lname  = "NUMA CPU Nodes",
4300                 .type   = FIO_OPT_UNSUPPORTED,
4301                 .help   = "Build fio with libnuma-dev(el) to enable this option",
4302         },
4303         {
4304                 .name   = "numa_mem_policy",
4305                 .lname  = "NUMA Memory Policy",
4306                 .type   = FIO_OPT_UNSUPPORTED,
4307                 .help   = "Build fio with libnuma-dev(el) to enable this option",
4308         },
4309 #endif
4310 #ifdef CONFIG_CUDA
4311         {
4312                 .name   = "gpu_dev_id",
4313                 .lname  = "GPU device ID",
4314                 .type   = FIO_OPT_INT,
4315                 .off1   = offsetof(struct thread_options, gpu_dev_id),
4316                 .help   = "Set GPU device ID for GPUDirect RDMA",
4317                 .def    = "0",
4318                 .category = FIO_OPT_C_GENERAL,
4319                 .group  = FIO_OPT_G_INVALID,
4320         },
4321 #endif
4322         {
4323                 .name   = "end_fsync",
4324                 .lname  = "End fsync",
4325                 .type   = FIO_OPT_BOOL,
4326                 .off1   = offsetof(struct thread_options, end_fsync),
4327                 .help   = "Include fsync at the end of job",
4328                 .def    = "0",
4329                 .category = FIO_OPT_C_FILE,
4330                 .group  = FIO_OPT_G_INVALID,
4331         },
4332         {
4333                 .name   = "fsync_on_close",
4334                 .lname  = "Fsync on close",
4335                 .type   = FIO_OPT_BOOL,
4336                 .off1   = offsetof(struct thread_options, fsync_on_close),
4337                 .help   = "fsync files on close",
4338                 .def    = "0",
4339                 .category = FIO_OPT_C_FILE,
4340                 .group  = FIO_OPT_G_INVALID,
4341         },
4342         {
4343                 .name   = "unlink",
4344                 .lname  = "Unlink file",
4345                 .type   = FIO_OPT_BOOL,
4346                 .off1   = offsetof(struct thread_options, unlink),
4347                 .help   = "Unlink created files after job has completed",
4348                 .def    = "0",
4349                 .category = FIO_OPT_C_FILE,
4350                 .group  = FIO_OPT_G_INVALID,
4351         },
4352         {
4353                 .name   = "unlink_each_loop",
4354                 .lname  = "Unlink file after each loop of a job",
4355                 .type   = FIO_OPT_BOOL,
4356                 .off1   = offsetof(struct thread_options, unlink_each_loop),
4357                 .help   = "Unlink created files after each loop in a job has completed",
4358                 .def    = "0",
4359                 .category = FIO_OPT_C_FILE,
4360                 .group  = FIO_OPT_G_INVALID,
4361         },
4362         {
4363                 .name   = "exitall",
4364                 .lname  = "Exit-all on terminate",
4365                 .type   = FIO_OPT_STR_SET,
4366                 .cb     = str_exitall_cb,
4367                 .help   = "Terminate all jobs when one exits",
4368                 .category = FIO_OPT_C_GENERAL,
4369                 .group  = FIO_OPT_G_PROCESS,
4370         },
4371         {
4372                 .name   = "exit_what",
4373                 .lname  = "What jobs to quit on terminate",
4374                 .type   = FIO_OPT_STR,
4375                 .off1   = offsetof(struct thread_options, exit_what),
4376                 .help   = "Fine-grained control for exitall",
4377                 .def    = "group",
4378                 .category = FIO_OPT_C_GENERAL,
4379                 .group  = FIO_OPT_G_PROCESS,
4380                 .posval = {
4381                           { .ival = "group",
4382                             .oval = TERMINATE_GROUP,
4383                             .help = "exit_all=1 default behaviour",
4384                           },
4385                           { .ival = "stonewall",
4386                             .oval = TERMINATE_STONEWALL,
4387                             .help = "quit all currently running jobs; continue with next stonewall",
4388                           },
4389                           { .ival = "all",
4390                             .oval = TERMINATE_ALL,
4391                             .help = "Quit everything",
4392                           },
4393                 },
4394         },
4395         {
4396                 .name   = "exitall_on_error",
4397                 .lname  = "Exit-all on terminate in error",
4398                 .type   = FIO_OPT_STR_SET,
4399                 .off1   = offsetof(struct thread_options, exitall_error),
4400                 .help   = "Terminate all jobs when one exits in error",
4401                 .category = FIO_OPT_C_GENERAL,
4402                 .group  = FIO_OPT_G_PROCESS,
4403         },
4404         {
4405                 .name   = "stonewall",
4406                 .lname  = "Wait for previous",
4407                 .alias  = "wait_for_previous",
4408                 .type   = FIO_OPT_STR_SET,
4409                 .off1   = offsetof(struct thread_options, stonewall),
4410                 .help   = "Insert a hard barrier between this job and previous",
4411                 .category = FIO_OPT_C_GENERAL,
4412                 .group  = FIO_OPT_G_PROCESS,
4413         },
4414         {
4415                 .name   = "new_group",
4416                 .lname  = "New group",
4417                 .type   = FIO_OPT_STR_SET,
4418                 .off1   = offsetof(struct thread_options, new_group),
4419                 .help   = "Mark the start of a new group (for reporting)",
4420                 .category = FIO_OPT_C_GENERAL,
4421                 .group  = FIO_OPT_G_PROCESS,
4422         },
4423         {
4424                 .name   = "thread",
4425                 .lname  = "Thread",
4426                 .type   = FIO_OPT_STR_SET,
4427                 .off1   = offsetof(struct thread_options, use_thread),
4428                 .help   = "Use threads instead of processes",
4429 #ifdef CONFIG_NO_SHM
4430                 .def    = "1",
4431                 .no_warn_def = 1,
4432 #endif
4433                 .category = FIO_OPT_C_GENERAL,
4434                 .group  = FIO_OPT_G_PROCESS,
4435         },
4436         {
4437                 .name   = "per_job_logs",
4438                 .lname  = "Per Job Logs",
4439                 .type   = FIO_OPT_BOOL,
4440                 .off1   = offsetof(struct thread_options, per_job_logs),
4441                 .help   = "Include job number in generated log files or not",
4442                 .def    = "1",
4443                 .category = FIO_OPT_C_LOG,
4444                 .group  = FIO_OPT_G_INVALID,
4445         },
4446         {
4447                 .name   = "write_bw_log",
4448                 .lname  = "Write bandwidth log",
4449                 .type   = FIO_OPT_STR,
4450                 .off1   = offsetof(struct thread_options, bw_log_file),
4451                 .cb     = str_write_bw_log_cb,
4452                 .help   = "Write log of bandwidth during run",
4453                 .category = FIO_OPT_C_LOG,
4454                 .group  = FIO_OPT_G_INVALID,
4455         },
4456         {
4457                 .name   = "write_lat_log",
4458                 .lname  = "Write latency log",
4459                 .type   = FIO_OPT_STR,
4460                 .off1   = offsetof(struct thread_options, lat_log_file),
4461                 .cb     = str_write_lat_log_cb,
4462                 .help   = "Write log of latency during run",
4463                 .category = FIO_OPT_C_LOG,
4464                 .group  = FIO_OPT_G_INVALID,
4465         },
4466         {
4467                 .name   = "write_iops_log",
4468                 .lname  = "Write IOPS log",
4469                 .type   = FIO_OPT_STR,
4470                 .off1   = offsetof(struct thread_options, iops_log_file),
4471                 .cb     = str_write_iops_log_cb,
4472                 .help   = "Write log of IOPS during run",
4473                 .category = FIO_OPT_C_LOG,
4474                 .group  = FIO_OPT_G_INVALID,
4475         },
4476         {
4477                 .name   = "log_entries",
4478                 .lname  = "Log entries",
4479                 .type   = FIO_OPT_INT,
4480                 .off1   = offsetof(struct thread_options, log_entries),
4481                 .help   = "Initial number of entries in a job IO log",
4482                 .def    = __fio_stringify(DEF_LOG_ENTRIES),
4483                 .minval = DEF_LOG_ENTRIES,
4484                 .maxval = MAX_LOG_ENTRIES,
4485                 .category = FIO_OPT_C_LOG,
4486                 .group  = FIO_OPT_G_INVALID,
4487         },
4488         {
4489                 .name   = "log_avg_msec",
4490                 .lname  = "Log averaging (msec)",
4491                 .type   = FIO_OPT_INT,
4492                 .off1   = offsetof(struct thread_options, log_avg_msec),
4493                 .help   = "Average bw/iops/lat logs over this period of time",
4494                 .def    = "0",
4495                 .category = FIO_OPT_C_LOG,
4496                 .group  = FIO_OPT_G_INVALID,
4497         },
4498         {
4499                 .name   = "log_hist_msec",
4500                 .lname  = "Log histograms (msec)",
4501                 .type   = FIO_OPT_INT,
4502                 .off1   = offsetof(struct thread_options, log_hist_msec),
4503                 .help   = "Dump completion latency histograms at frequency of this time value",
4504                 .def    = "0",
4505                 .category = FIO_OPT_C_LOG,
4506                 .group  = FIO_OPT_G_INVALID,
4507         },
4508         {
4509                 .name   = "log_hist_coarseness",
4510                 .lname  = "Histogram logs coarseness",
4511                 .type   = FIO_OPT_INT,
4512                 .off1   = offsetof(struct thread_options, log_hist_coarseness),
4513                 .help   = "Integer in range [0,6]. Higher coarseness outputs"
4514                         " fewer histogram bins per sample. The number of bins for"
4515                         " these are [1216, 608, 304, 152, 76, 38, 19] respectively.",
4516                 .def    = "0",
4517                 .category = FIO_OPT_C_LOG,
4518                 .group  = FIO_OPT_G_INVALID,
4519         },
4520         {
4521                 .name   = "write_hist_log",
4522                 .lname  = "Write latency histogram logs",
4523                 .type   = FIO_OPT_STR,
4524                 .off1   = offsetof(struct thread_options, hist_log_file),
4525                 .cb     = str_write_hist_log_cb,
4526                 .help   = "Write log of latency histograms during run",
4527                 .category = FIO_OPT_C_LOG,
4528                 .group  = FIO_OPT_G_INVALID,
4529         },
4530         {
4531                 .name   = "log_max_value",
4532                 .lname  = "Log maximum instead of average",
4533                 .type   = FIO_OPT_BOOL,
4534                 .off1   = offsetof(struct thread_options, log_max),
4535                 .help   = "Log max sample in a window instead of average",
4536                 .def    = "0",
4537                 .category = FIO_OPT_C_LOG,
4538                 .group  = FIO_OPT_G_INVALID,
4539         },
4540         {
4541                 .name   = "log_offset",
4542                 .lname  = "Log offset of IO",
4543                 .type   = FIO_OPT_BOOL,
4544                 .off1   = offsetof(struct thread_options, log_offset),
4545                 .help   = "Include offset of IO for each log entry",
4546                 .def    = "0",
4547                 .category = FIO_OPT_C_LOG,
4548                 .group  = FIO_OPT_G_INVALID,
4549         },
4550         {
4551                 .name   = "log_prio",
4552                 .lname  = "Log priority of IO",
4553                 .type   = FIO_OPT_BOOL,
4554                 .off1   = offsetof(struct thread_options, log_prio),
4555                 .help   = "Include priority value of IO for each log entry",
4556                 .def    = "0",
4557                 .category = FIO_OPT_C_LOG,
4558                 .group  = FIO_OPT_G_INVALID,
4559         },
4560 #ifdef CONFIG_ZLIB
4561         {
4562                 .name   = "log_compression",
4563                 .lname  = "Log compression",
4564                 .type   = FIO_OPT_INT,
4565                 .off1   = offsetof(struct thread_options, log_gz),
4566                 .help   = "Log in compressed chunks of this size",
4567                 .minval = 1024ULL,
4568                 .maxval = 512 * 1024 * 1024ULL,
4569                 .category = FIO_OPT_C_LOG,
4570                 .group  = FIO_OPT_G_INVALID,
4571         },
4572 #ifdef FIO_HAVE_CPU_AFFINITY
4573         {
4574                 .name   = "log_compression_cpus",
4575                 .lname  = "Log Compression CPUs",
4576                 .type   = FIO_OPT_STR,
4577                 .cb     = str_log_cpus_allowed_cb,
4578                 .off1   = offsetof(struct thread_options, log_gz_cpumask),
4579                 .parent = "log_compression",
4580                 .help   = "Limit log compression to these CPUs",
4581                 .category = FIO_OPT_C_LOG,
4582                 .group  = FIO_OPT_G_INVALID,
4583         },
4584 #else
4585         {
4586                 .name   = "log_compression_cpus",
4587                 .lname  = "Log Compression CPUs",
4588                 .type   = FIO_OPT_UNSUPPORTED,
4589                 .help   = "Your platform does not support CPU affinities",
4590         },
4591 #endif
4592         {
4593                 .name   = "log_store_compressed",
4594                 .lname  = "Log store compressed",
4595                 .type   = FIO_OPT_BOOL,
4596                 .off1   = offsetof(struct thread_options, log_gz_store),
4597                 .help   = "Store logs in a compressed format",
4598                 .category = FIO_OPT_C_LOG,
4599                 .group  = FIO_OPT_G_INVALID,
4600         },
4601 #else
4602         {
4603                 .name   = "log_compression",
4604                 .lname  = "Log compression",
4605                 .type   = FIO_OPT_UNSUPPORTED,
4606                 .help   = "Install libz-dev(el) to get compression support",
4607         },
4608         {
4609                 .name   = "log_store_compressed",
4610                 .lname  = "Log store compressed",
4611                 .type   = FIO_OPT_UNSUPPORTED,
4612                 .help   = "Install libz-dev(el) to get compression support",
4613         },
4614 #endif
4615         {
4616                 .name = "log_alternate_epoch",
4617                 .alias = "log_unix_epoch",
4618                 .lname = "Log epoch alternate",
4619                 .type = FIO_OPT_BOOL,
4620                 .off1 = offsetof(struct thread_options, log_alternate_epoch),
4621                 .help = "Use alternate epoch time in log files. Uses the same epoch as that is used by clock_gettime with specified log_alternate_epoch_clock_id.",
4622                 .category = FIO_OPT_C_LOG,
4623                 .group = FIO_OPT_G_INVALID,
4624         },
4625         {
4626                 .name = "log_alternate_epoch_clock_id",
4627                 .lname = "Log alternate epoch clock_id",
4628                 .type = FIO_OPT_INT,
4629                 .off1 = offsetof(struct thread_options, log_alternate_epoch_clock_id),
4630                 .help = "If log_alternate_epoch is true, this option specifies the clock_id from clock_gettime whose epoch should be used. If log_alternate_epoch is false, this option has no effect. Default value is 0, or CLOCK_REALTIME",
4631                 .category = FIO_OPT_C_LOG,
4632                 .group = FIO_OPT_G_INVALID,
4633         },
4634         {
4635                 .name   = "block_error_percentiles",
4636                 .lname  = "Block error percentiles",
4637                 .type   = FIO_OPT_BOOL,
4638                 .off1   = offsetof(struct thread_options, block_error_hist),
4639                 .help   = "Record trim block errors and make a histogram",
4640                 .def    = "0",
4641                 .category = FIO_OPT_C_LOG,
4642                 .group  = FIO_OPT_G_INVALID,
4643         },
4644         {
4645                 .name   = "bwavgtime",
4646                 .lname  = "Bandwidth average time",
4647                 .type   = FIO_OPT_INT,
4648                 .off1   = offsetof(struct thread_options, bw_avg_time),
4649                 .help   = "Time window over which to calculate bandwidth"
4650                           " (msec)",
4651                 .def    = "500",
4652                 .parent = "write_bw_log",
4653                 .hide   = 1,
4654                 .interval = 100,
4655                 .category = FIO_OPT_C_LOG,
4656                 .group  = FIO_OPT_G_INVALID,
4657         },
4658         {
4659                 .name   = "iopsavgtime",
4660                 .lname  = "IOPS average time",
4661                 .type   = FIO_OPT_INT,
4662                 .off1   = offsetof(struct thread_options, iops_avg_time),
4663                 .help   = "Time window over which to calculate IOPS (msec)",
4664                 .def    = "500",
4665                 .parent = "write_iops_log",
4666                 .hide   = 1,
4667                 .interval = 100,
4668                 .category = FIO_OPT_C_LOG,
4669                 .group  = FIO_OPT_G_INVALID,
4670         },
4671         {
4672                 .name   = "group_reporting",
4673                 .lname  = "Group reporting",
4674                 .type   = FIO_OPT_STR_SET,
4675                 .off1   = offsetof(struct thread_options, group_reporting),
4676                 .help   = "Do reporting on a per-group basis",
4677                 .category = FIO_OPT_C_STAT,
4678                 .group  = FIO_OPT_G_INVALID,
4679         },
4680         {
4681                 .name   = "stats",
4682                 .lname  = "Stats",
4683                 .type   = FIO_OPT_BOOL,
4684                 .off1   = offsetof(struct thread_options, stats),
4685                 .help   = "Enable collection of stats",
4686                 .def    = "1",
4687                 .category = FIO_OPT_C_STAT,
4688                 .group  = FIO_OPT_G_INVALID,
4689         },
4690         {
4691                 .name   = "zero_buffers",
4692                 .lname  = "Zero I/O buffers",
4693                 .type   = FIO_OPT_STR_SET,
4694                 .off1   = offsetof(struct thread_options, zero_buffers),
4695                 .help   = "Init IO buffers to all zeroes",
4696                 .category = FIO_OPT_C_IO,
4697                 .group  = FIO_OPT_G_IO_BUF,
4698         },
4699         {
4700                 .name   = "refill_buffers",
4701                 .lname  = "Refill I/O buffers",
4702                 .type   = FIO_OPT_STR_SET,
4703                 .off1   = offsetof(struct thread_options, refill_buffers),
4704                 .help   = "Refill IO buffers on every IO submit",
4705                 .category = FIO_OPT_C_IO,
4706                 .group  = FIO_OPT_G_IO_BUF,
4707         },
4708         {
4709                 .name   = "scramble_buffers",
4710                 .lname  = "Scramble I/O buffers",
4711                 .type   = FIO_OPT_BOOL,
4712                 .off1   = offsetof(struct thread_options, scramble_buffers),
4713                 .help   = "Slightly scramble buffers on every IO submit",
4714                 .def    = "1",
4715                 .category = FIO_OPT_C_IO,
4716                 .group  = FIO_OPT_G_IO_BUF,
4717         },
4718         {
4719                 .name   = "buffer_pattern",
4720                 .lname  = "Buffer pattern",
4721                 .type   = FIO_OPT_STR,
4722                 .cb     = str_buffer_pattern_cb,
4723                 .off1   = offsetof(struct thread_options, buffer_pattern),
4724                 .help   = "Fill pattern for IO buffers",
4725                 .category = FIO_OPT_C_IO,
4726                 .group  = FIO_OPT_G_IO_BUF,
4727         },
4728         {
4729                 .name   = "buffer_compress_percentage",
4730                 .lname  = "Buffer compression percentage",
4731                 .type   = FIO_OPT_INT,
4732                 .cb     = str_buffer_compress_cb,
4733                 .off1   = offsetof(struct thread_options, compress_percentage),
4734                 .maxval = 100,
4735                 .minval = 0,
4736                 .help   = "How compressible the buffer is (approximately)",
4737                 .interval = 5,
4738                 .category = FIO_OPT_C_IO,
4739                 .group  = FIO_OPT_G_IO_BUF,
4740         },
4741         {
4742                 .name   = "buffer_compress_chunk",
4743                 .lname  = "Buffer compression chunk size",
4744                 .type   = FIO_OPT_INT,
4745                 .off1   = offsetof(struct thread_options, compress_chunk),
4746                 .parent = "buffer_compress_percentage",
4747                 .hide   = 1,
4748                 .help   = "Size of compressible region in buffer",
4749                 .def    = "512",
4750                 .interval = 256,
4751                 .category = FIO_OPT_C_IO,
4752                 .group  = FIO_OPT_G_IO_BUF,
4753         },
4754         {
4755                 .name   = "dedupe_percentage",
4756                 .lname  = "Dedupe percentage",
4757                 .type   = FIO_OPT_INT,
4758                 .cb     = str_dedupe_cb,
4759                 .off1   = offsetof(struct thread_options, dedupe_percentage),
4760                 .maxval = 100,
4761                 .minval = 0,
4762                 .help   = "Percentage of buffers that are dedupable",
4763                 .interval = 1,
4764                 .category = FIO_OPT_C_IO,
4765                 .group  = FIO_OPT_G_IO_BUF,
4766         },
4767         {
4768                 .name   = "dedupe_global",
4769                 .lname  = "Global deduplication",
4770                 .type   = FIO_OPT_BOOL,
4771                 .off1   = offsetof(struct thread_options, dedupe_global),
4772                 .help   = "Share deduplication buffers across jobs",
4773                 .def    = "0",
4774                 .category = FIO_OPT_C_IO,
4775                 .group  = FIO_OPT_G_IO_BUF,
4776         },
4777         {
4778                 .name   = "dedupe_mode",
4779                 .lname  = "Dedupe mode",
4780                 .help   = "Mode for the deduplication buffer generation",
4781                 .type   = FIO_OPT_STR,
4782                 .off1   = offsetof(struct thread_options, dedupe_mode),
4783                 .parent = "dedupe_percentage",
4784                 .def    = "repeat",
4785                 .category = FIO_OPT_C_IO,
4786                 .group  = FIO_OPT_G_IO_BUF,
4787                 .posval = {
4788                            { .ival = "repeat",
4789                              .oval = DEDUPE_MODE_REPEAT,
4790                              .help = "repeat previous page",
4791                            },
4792                            { .ival = "working_set",
4793                              .oval = DEDUPE_MODE_WORKING_SET,
4794                              .help = "choose a page randomly from limited working set defined in dedupe_working_set_percentage",
4795                            },
4796                 },
4797         },
4798         {
4799                 .name   = "dedupe_working_set_percentage",
4800                 .lname  = "Dedupe working set percentage",
4801                 .help   = "Dedupe working set size in percentages from file or device size used to generate dedupe patterns from",
4802                 .type   = FIO_OPT_INT,
4803                 .off1   = offsetof(struct thread_options, dedupe_working_set_percentage),
4804                 .parent = "dedupe_percentage",
4805                 .def    = "5",
4806                 .maxval = 100,
4807                 .minval = 0,
4808                 .category = FIO_OPT_C_IO,
4809                 .group  = FIO_OPT_G_IO_BUF,
4810         },
4811         {
4812                 .name   = "clat_percentiles",
4813                 .lname  = "Completion latency percentiles",
4814                 .type   = FIO_OPT_BOOL,
4815                 .off1   = offsetof(struct thread_options, clat_percentiles),
4816                 .help   = "Enable the reporting of completion latency percentiles",
4817                 .def    = "1",
4818                 .category = FIO_OPT_C_STAT,
4819                 .group  = FIO_OPT_G_INVALID,
4820         },
4821         {
4822                 .name   = "lat_percentiles",
4823                 .lname  = "IO latency percentiles",
4824                 .type   = FIO_OPT_BOOL,
4825                 .off1   = offsetof(struct thread_options, lat_percentiles),
4826                 .help   = "Enable the reporting of IO latency percentiles",
4827                 .def    = "0",
4828                 .category = FIO_OPT_C_STAT,
4829                 .group  = FIO_OPT_G_INVALID,
4830         },
4831         {
4832                 .name   = "slat_percentiles",
4833                 .lname  = "Submission latency percentiles",
4834                 .type   = FIO_OPT_BOOL,
4835                 .off1   = offsetof(struct thread_options, slat_percentiles),
4836                 .help   = "Enable the reporting of submission latency percentiles",
4837                 .def    = "0",
4838                 .category = FIO_OPT_C_STAT,
4839                 .group  = FIO_OPT_G_INVALID,
4840         },
4841         {
4842                 .name   = "percentile_list",
4843                 .lname  = "Percentile list",
4844                 .type   = FIO_OPT_FLOAT_LIST,
4845                 .off1   = offsetof(struct thread_options, percentile_list),
4846                 .off2   = offsetof(struct thread_options, percentile_precision),
4847                 .help   = "Specify a custom list of percentiles to report for "
4848                           "completion latency and block errors",
4849                 .def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
4850                 .maxlen = FIO_IO_U_LIST_MAX_LEN,
4851                 .minfp  = 0.0,
4852                 .maxfp  = 100.0,
4853                 .category = FIO_OPT_C_STAT,
4854                 .group  = FIO_OPT_G_INVALID,
4855         },
4856         {
4857                 .name   = "significant_figures",
4858                 .lname  = "Significant figures",
4859                 .type   = FIO_OPT_INT,
4860                 .off1   = offsetof(struct thread_options, sig_figs),
4861                 .maxval = 10,
4862                 .minval = 1,
4863                 .help   = "Significant figures for output-format set to normal",
4864                 .def    = "4",
4865                 .interval = 1,
4866                 .category = FIO_OPT_C_STAT,
4867                 .group  = FIO_OPT_G_INVALID,
4868         },
4869
4870 #ifdef FIO_HAVE_DISK_UTIL
4871         {
4872                 .name   = "disk_util",
4873                 .lname  = "Disk utilization",
4874                 .type   = FIO_OPT_BOOL,
4875                 .off1   = offsetof(struct thread_options, do_disk_util),
4876                 .help   = "Log disk utilization statistics",
4877                 .def    = "1",
4878                 .category = FIO_OPT_C_STAT,
4879                 .group  = FIO_OPT_G_INVALID,
4880         },
4881 #else
4882         {
4883                 .name   = "disk_util",
4884                 .lname  = "Disk utilization",
4885                 .type   = FIO_OPT_UNSUPPORTED,
4886                 .help   = "Your platform does not support disk utilization",
4887         },
4888 #endif
4889         {
4890                 .name   = "gtod_reduce",
4891                 .lname  = "Reduce gettimeofday() calls",
4892                 .type   = FIO_OPT_BOOL,
4893                 .help   = "Greatly reduce number of gettimeofday() calls",
4894                 .cb     = str_gtod_reduce_cb,
4895                 .def    = "0",
4896                 .hide_on_set = 1,
4897                 .category = FIO_OPT_C_STAT,
4898                 .group  = FIO_OPT_G_INVALID,
4899         },
4900         {
4901                 .name   = "disable_lat",
4902                 .lname  = "Disable all latency stats",
4903                 .type   = FIO_OPT_BOOL,
4904                 .off1   = offsetof(struct thread_options, disable_lat),
4905                 .help   = "Disable latency numbers",
4906                 .parent = "gtod_reduce",
4907                 .hide   = 1,
4908                 .def    = "0",
4909                 .category = FIO_OPT_C_STAT,
4910                 .group  = FIO_OPT_G_INVALID,
4911         },
4912         {
4913                 .name   = "disable_clat",
4914                 .lname  = "Disable completion latency stats",
4915                 .type   = FIO_OPT_BOOL,
4916                 .off1   = offsetof(struct thread_options, disable_clat),
4917                 .help   = "Disable completion latency numbers",
4918                 .parent = "gtod_reduce",
4919                 .hide   = 1,
4920                 .def    = "0",
4921                 .category = FIO_OPT_C_STAT,
4922                 .group  = FIO_OPT_G_INVALID,
4923         },
4924         {
4925                 .name   = "disable_slat",
4926                 .lname  = "Disable submission latency stats",
4927                 .type   = FIO_OPT_BOOL,
4928                 .off1   = offsetof(struct thread_options, disable_slat),
4929                 .help   = "Disable submission latency numbers",
4930                 .parent = "gtod_reduce",
4931                 .hide   = 1,
4932                 .def    = "0",
4933                 .category = FIO_OPT_C_STAT,
4934                 .group  = FIO_OPT_G_INVALID,
4935         },
4936         {
4937                 .name   = "disable_bw_measurement",
4938                 .alias  = "disable_bw",
4939                 .lname  = "Disable bandwidth stats",
4940                 .type   = FIO_OPT_BOOL,
4941                 .off1   = offsetof(struct thread_options, disable_bw),
4942                 .help   = "Disable bandwidth logging",
4943                 .parent = "gtod_reduce",
4944                 .hide   = 1,
4945                 .def    = "0",
4946                 .category = FIO_OPT_C_STAT,
4947                 .group  = FIO_OPT_G_INVALID,
4948         },
4949         {
4950                 .name   = "gtod_cpu",
4951                 .lname  = "Dedicated gettimeofday() CPU",
4952                 .type   = FIO_OPT_INT,
4953                 .off1   = offsetof(struct thread_options, gtod_cpu),
4954                 .help   = "Set up dedicated gettimeofday() thread on this CPU",
4955                 .verify = gtod_cpu_verify,
4956                 .category = FIO_OPT_C_GENERAL,
4957                 .group  = FIO_OPT_G_CLOCK,
4958         },
4959         {
4960                 .name   = "job_start_clock_id",
4961                 .lname  = "Job start clock_id",
4962                 .type   = FIO_OPT_INT,
4963                 .off1   = offsetof(struct thread_options, job_start_clock_id),
4964                 .help   = "The clock_id passed to the call to clock_gettime used to record job_start in the json output format. Default is 0, or CLOCK_REALTIME",
4965                 .verify = gtod_cpu_verify,
4966                 .category = FIO_OPT_C_GENERAL,
4967                 .group  = FIO_OPT_G_CLOCK,
4968         },
4969         {
4970                 .name   = "unified_rw_reporting",
4971                 .lname  = "Unified RW Reporting",
4972                 .type   = FIO_OPT_STR,
4973                 .off1   = offsetof(struct thread_options, unified_rw_rep),
4974                 .help   = "Unify reporting across data direction",
4975                 .def    = "none",
4976                 .category = FIO_OPT_C_GENERAL,
4977                 .group  = FIO_OPT_G_INVALID,
4978                 .posval = {
4979                           { .ival = "none",
4980                             .oval = UNIFIED_SPLIT,
4981                             .help = "Normal statistics reporting",
4982                           },
4983                           { .ival = "mixed",
4984                             .oval = UNIFIED_MIXED,
4985                             .help = "Statistics are summed per data direction and reported together",
4986                           },
4987                           { .ival = "both",
4988                             .oval = UNIFIED_BOTH,
4989                             .help = "Statistics are reported normally, followed by the mixed statistics"
4990                           },
4991                           /* Compatibility with former boolean values */
4992                           { .ival = "0",
4993                             .oval = UNIFIED_SPLIT,
4994                             .help = "Alias for 'none'",
4995                           },
4996                           { .ival = "1",
4997                             .oval = UNIFIED_MIXED,
4998                             .help = "Alias for 'mixed'",
4999                           },
5000                           { .ival = "2",
5001                             .oval = UNIFIED_BOTH,
5002                             .help = "Alias for 'both'",
5003                           },
5004                 },
5005         },
5006         {
5007                 .name   = "continue_on_error",
5008                 .lname  = "Continue on error",
5009                 .type   = FIO_OPT_STR,
5010                 .off1   = offsetof(struct thread_options, continue_on_error),
5011                 .help   = "Continue on non-fatal errors during IO",
5012                 .def    = "none",
5013                 .category = FIO_OPT_C_GENERAL,
5014                 .group  = FIO_OPT_G_ERR,
5015                 .posval = {
5016                           { .ival = "none",
5017                             .oval = ERROR_TYPE_NONE,
5018                             .help = "Exit when an error is encountered",
5019                           },
5020                           { .ival = "read",
5021                             .oval = ERROR_TYPE_READ,
5022                             .help = "Continue on read errors only",
5023                           },
5024                           { .ival = "write",
5025                             .oval = ERROR_TYPE_WRITE,
5026                             .help = "Continue on write errors only",
5027                           },
5028                           { .ival = "io",
5029                             .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
5030                             .help = "Continue on any IO errors",
5031                           },
5032                           { .ival = "verify",
5033                             .oval = ERROR_TYPE_VERIFY,
5034                             .help = "Continue on verify errors only",
5035                           },
5036                           { .ival = "all",
5037                             .oval = ERROR_TYPE_ANY,
5038                             .help = "Continue on all io and verify errors",
5039                           },
5040                           { .ival = "0",
5041                             .oval = ERROR_TYPE_NONE,
5042                             .help = "Alias for 'none'",
5043                           },
5044                           { .ival = "1",
5045                             .oval = ERROR_TYPE_ANY,
5046                             .help = "Alias for 'all'",
5047                           },
5048                 },
5049         },
5050         {
5051                 .name   = "ignore_error",
5052                 .lname  = "Ignore Error",
5053                 .type   = FIO_OPT_STR,
5054                 .cb     = str_ignore_error_cb,
5055                 .off1   = offsetof(struct thread_options, ignore_error_nr),
5056                 .help   = "Set a specific list of errors to ignore",
5057                 .parent = "rw",
5058                 .category = FIO_OPT_C_GENERAL,
5059                 .group  = FIO_OPT_G_ERR,
5060         },
5061         {
5062                 .name   = "error_dump",
5063                 .lname  = "Error Dump",
5064                 .type   = FIO_OPT_BOOL,
5065                 .off1   = offsetof(struct thread_options, error_dump),
5066                 .def    = "0",
5067                 .help   = "Dump info on each error",
5068                 .category = FIO_OPT_C_GENERAL,
5069                 .group  = FIO_OPT_G_ERR,
5070         },
5071         {
5072                 .name   = "profile",
5073                 .lname  = "Profile",
5074                 .type   = FIO_OPT_STR_STORE,
5075                 .off1   = offsetof(struct thread_options, profile),
5076                 .help   = "Select a specific builtin performance test",
5077                 .category = FIO_OPT_C_PROFILE,
5078                 .group  = FIO_OPT_G_INVALID,
5079         },
5080         {
5081                 .name   = "cgroup",
5082                 .lname  = "Cgroup",
5083                 .type   = FIO_OPT_STR_STORE,
5084                 .off1   = offsetof(struct thread_options, cgroup),
5085                 .help   = "Add job to cgroup of this name",
5086                 .category = FIO_OPT_C_GENERAL,
5087                 .group  = FIO_OPT_G_CGROUP,
5088         },
5089         {
5090                 .name   = "cgroup_nodelete",
5091                 .lname  = "Cgroup no-delete",
5092                 .type   = FIO_OPT_BOOL,
5093                 .off1   = offsetof(struct thread_options, cgroup_nodelete),
5094                 .help   = "Do not delete cgroups after job completion",
5095                 .def    = "0",
5096                 .parent = "cgroup",
5097                 .category = FIO_OPT_C_GENERAL,
5098                 .group  = FIO_OPT_G_CGROUP,
5099         },
5100         {
5101                 .name   = "cgroup_weight",
5102                 .lname  = "Cgroup weight",
5103                 .type   = FIO_OPT_INT,
5104                 .off1   = offsetof(struct thread_options, cgroup_weight),
5105                 .help   = "Use given weight for cgroup",
5106                 .minval = 100,
5107                 .maxval = 1000,
5108                 .parent = "cgroup",
5109                 .category = FIO_OPT_C_GENERAL,
5110                 .group  = FIO_OPT_G_CGROUP,
5111         },
5112         {
5113                 .name   = "uid",
5114                 .lname  = "User ID",
5115                 .type   = FIO_OPT_INT,
5116                 .off1   = offsetof(struct thread_options, uid),
5117                 .help   = "Run job with this user ID",
5118                 .category = FIO_OPT_C_GENERAL,
5119                 .group  = FIO_OPT_G_CRED,
5120         },
5121         {
5122                 .name   = "gid",
5123                 .lname  = "Group ID",
5124                 .type   = FIO_OPT_INT,
5125                 .off1   = offsetof(struct thread_options, gid),
5126                 .help   = "Run job with this group ID",
5127                 .category = FIO_OPT_C_GENERAL,
5128                 .group  = FIO_OPT_G_CRED,
5129         },
5130         {
5131                 .name   = "kb_base",
5132                 .lname  = "KB Base",
5133                 .type   = FIO_OPT_STR,
5134                 .off1   = offsetof(struct thread_options, kb_base),
5135                 .prio   = 1,
5136                 .def    = "1024",
5137                 .posval = {
5138                           { .ival = "1024",
5139                             .oval = 1024,
5140                             .help = "Inputs invert IEC and SI prefixes (for compatibility); outputs prefer binary",
5141                           },
5142                           { .ival = "1000",
5143                             .oval = 1000,
5144                             .help = "Inputs use IEC and SI prefixes; outputs prefer SI",
5145                           },
5146                 },
5147                 .help   = "Unit prefix interpretation for quantities of data (IEC and SI)",
5148                 .category = FIO_OPT_C_GENERAL,
5149                 .group  = FIO_OPT_G_INVALID,
5150         },
5151         {
5152                 .name   = "unit_base",
5153                 .lname  = "Unit for quantities of data (Bits or Bytes)",
5154                 .type   = FIO_OPT_STR,
5155                 .off1   = offsetof(struct thread_options, unit_base),
5156                 .prio   = 1,
5157                 .posval = {
5158                           { .ival = "0",
5159                             .oval = N2S_NONE,
5160                             .help = "Auto-detect",
5161                           },
5162                           { .ival = "8",
5163                             .oval = N2S_BYTEPERSEC,
5164                             .help = "Normal (byte based)",
5165                           },
5166                           { .ival = "1",
5167                             .oval = N2S_BITPERSEC,
5168                             .help = "Bit based",
5169                           },
5170                 },
5171                 .help   = "Bit multiple of result summary data (8 for byte, 1 for bit)",
5172                 .category = FIO_OPT_C_GENERAL,
5173                 .group  = FIO_OPT_G_INVALID,
5174         },
5175         {
5176                 .name   = "hugepage-size",
5177                 .lname  = "Hugepage size",
5178                 .type   = FIO_OPT_INT,
5179                 .off1   = offsetof(struct thread_options, hugepage_size),
5180                 .help   = "When using hugepages, specify size of each page",
5181                 .def    = __fio_stringify(FIO_HUGE_PAGE),
5182                 .interval = 1024 * 1024,
5183                 .category = FIO_OPT_C_GENERAL,
5184                 .group  = FIO_OPT_G_INVALID,
5185         },
5186         {
5187                 .name   = "flow_id",
5188                 .lname  = "I/O flow ID",
5189                 .type   = FIO_OPT_INT,
5190                 .off1   = offsetof(struct thread_options, flow_id),
5191                 .help   = "The flow index ID to use",
5192                 .def    = "0",
5193                 .category = FIO_OPT_C_IO,
5194                 .group  = FIO_OPT_G_IO_FLOW,
5195         },
5196         {
5197                 .name   = "flow",
5198                 .lname  = "I/O flow weight",
5199                 .type   = FIO_OPT_INT,
5200                 .off1   = offsetof(struct thread_options, flow),
5201                 .help   = "Weight for flow control of this job",
5202                 .parent = "flow_id",
5203                 .hide   = 1,
5204                 .def    = "0",
5205                 .maxval = FLOW_MAX_WEIGHT,
5206                 .category = FIO_OPT_C_IO,
5207                 .group  = FIO_OPT_G_IO_FLOW,
5208         },
5209         {
5210                 .name   = "flow_watermark",
5211                 .lname  = "I/O flow watermark",
5212                 .type   = FIO_OPT_SOFT_DEPRECATED,
5213                 .category = FIO_OPT_C_IO,
5214                 .group  = FIO_OPT_G_IO_FLOW,
5215         },
5216         {
5217                 .name   = "flow_sleep",
5218                 .lname  = "I/O flow sleep",
5219                 .type   = FIO_OPT_INT,
5220                 .off1   = offsetof(struct thread_options, flow_sleep),
5221                 .help   = "How many microseconds to sleep after being held"
5222                         " back by the flow control mechanism",
5223                 .parent = "flow_id",
5224                 .hide   = 1,
5225                 .def    = "0",
5226                 .category = FIO_OPT_C_IO,
5227                 .group  = FIO_OPT_G_IO_FLOW,
5228         },
5229         {
5230                 .name   = "steadystate",
5231                 .lname  = "Steady state threshold",
5232                 .alias  = "ss",
5233                 .type   = FIO_OPT_STR,
5234                 .off1   = offsetof(struct thread_options, ss_state),
5235                 .cb     = str_steadystate_cb,
5236                 .help   = "Define the criterion and limit to judge when a job has reached steady state",
5237                 .def    = "iops_slope:0.01%",
5238                 .posval = {
5239                           { .ival = "iops",
5240                             .oval = FIO_SS_IOPS,
5241                             .help = "maximum mean deviation of IOPS measurements",
5242                           },
5243                           { .ival = "iops_slope",
5244                             .oval = FIO_SS_IOPS_SLOPE,
5245                             .help = "slope calculated from IOPS measurements",
5246                           },
5247                           { .ival = "bw",
5248                             .oval = FIO_SS_BW,
5249                             .help = "maximum mean deviation of bandwidth measurements",
5250                           },
5251                           {
5252                             .ival = "bw_slope",
5253                             .oval = FIO_SS_BW_SLOPE,
5254                             .help = "slope calculated from bandwidth measurements",
5255                           },
5256                 },
5257                 .category = FIO_OPT_C_GENERAL,
5258                 .group  = FIO_OPT_G_RUNTIME,
5259         },
5260         {
5261                 .name   = "steadystate_duration",
5262                 .lname  = "Steady state duration",
5263                 .alias  = "ss_dur",
5264                 .parent = "steadystate",
5265                 .type   = FIO_OPT_STR_VAL_TIME,
5266                 .off1   = offsetof(struct thread_options, ss_dur),
5267                 .help   = "Stop workload upon attaining steady state for specified duration",
5268                 .def    = "0",
5269                 .is_seconds = 1,
5270                 .is_time = 1,
5271                 .category = FIO_OPT_C_GENERAL,
5272                 .group  = FIO_OPT_G_RUNTIME,
5273         },
5274         {
5275                 .name   = "steadystate_ramp_time",
5276                 .lname  = "Steady state ramp time",
5277                 .alias  = "ss_ramp",
5278                 .parent = "steadystate",
5279                 .type   = FIO_OPT_STR_VAL_TIME,
5280                 .off1   = offsetof(struct thread_options, ss_ramp_time),
5281                 .help   = "Delay before initiation of data collection for steady state job termination testing",
5282                 .def    = "0",
5283                 .is_seconds = 1,
5284                 .is_time = 1,
5285                 .category = FIO_OPT_C_GENERAL,
5286                 .group  = FIO_OPT_G_RUNTIME,
5287         },
5288         {
5289                 .name   = "steadystate_check_interval",
5290                 .lname  = "Steady state check interval",
5291                 .alias  = "ss_interval",
5292                 .parent = "steadystate",
5293                 .type   = FIO_OPT_STR_VAL_TIME,
5294                 .off1   = offsetof(struct thread_options, ss_check_interval),
5295                 .help   = "Polling interval for the steady state check (too low means steadystate will not converge)",
5296                 .def    = "1",
5297                 .is_seconds = 1,
5298                 .is_time = 1,
5299                 .category = FIO_OPT_C_GENERAL,
5300                 .group  = FIO_OPT_G_RUNTIME,
5301         },
5302         {
5303                 .name = NULL,
5304         },
5305 };
5306
5307 static void add_to_lopt(struct option *lopt, struct fio_option *o,
5308                         const char *name, int val)
5309 {
5310         lopt->name = (char *) name;
5311         lopt->val = val;
5312         if (o->type == FIO_OPT_STR_SET)
5313                 lopt->has_arg = optional_argument;
5314         else
5315                 lopt->has_arg = required_argument;
5316 }
5317
5318 static void options_to_lopts(struct fio_option *opts,
5319                               struct option *long_options,
5320                               int i, int option_type)
5321 {
5322         struct fio_option *o = &opts[0];
5323         while (o->name) {
5324                 add_to_lopt(&long_options[i], o, o->name, option_type);
5325                 if (o->alias) {
5326                         i++;
5327                         add_to_lopt(&long_options[i], o, o->alias, option_type);
5328                 }
5329
5330                 i++;
5331                 o++;
5332                 assert(i < FIO_NR_OPTIONS);
5333         }
5334 }
5335
5336 void fio_options_set_ioengine_opts(struct option *long_options,
5337                                    struct thread_data *td)
5338 {
5339         unsigned int i;
5340
5341         i = 0;
5342         while (long_options[i].name) {
5343                 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
5344                         memset(&long_options[i], 0, sizeof(*long_options));
5345                         break;
5346                 }
5347                 i++;
5348         }
5349
5350         /*
5351          * Just clear out the prior ioengine options.
5352          */
5353         if (!td || !td->eo)
5354                 return;
5355
5356         options_to_lopts(td->io_ops->options, long_options, i,
5357                          FIO_GETOPT_IOENGINE);
5358 }
5359
5360 void fio_options_dup_and_init(struct option *long_options)
5361 {
5362         unsigned int i;
5363
5364         options_init(fio_options);
5365
5366         i = 0;
5367         while (long_options[i].name)
5368                 i++;
5369
5370         options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
5371 }
5372
5373 struct fio_keyword {
5374         const char *word;
5375         const char *desc;
5376         char *replace;
5377 };
5378
5379 static struct fio_keyword fio_keywords[] = {
5380         {
5381                 .word   = "$pagesize",
5382                 .desc   = "Page size in the system",
5383         },
5384         {
5385                 .word   = "$mb_memory",
5386                 .desc   = "Megabytes of memory online",
5387         },
5388         {
5389                 .word   = "$ncpus",
5390                 .desc   = "Number of CPUs online in the system",
5391         },
5392         {
5393                 .word   = NULL,
5394         },
5395 };
5396
5397 void fio_keywords_exit(void)
5398 {
5399         struct fio_keyword *kw;
5400
5401         kw = &fio_keywords[0];
5402         while (kw->word) {
5403                 free(kw->replace);
5404                 kw->replace = NULL;
5405                 kw++;
5406         }
5407 }
5408
5409 void fio_keywords_init(void)
5410 {
5411         unsigned long long mb_memory;
5412         char buf[128];
5413         long l;
5414
5415         sprintf(buf, "%lu", (unsigned long) page_size);
5416         fio_keywords[0].replace = strdup(buf);
5417
5418         mb_memory = os_phys_mem() / (1024 * 1024);
5419         sprintf(buf, "%llu", mb_memory);
5420         fio_keywords[1].replace = strdup(buf);
5421
5422         l = cpus_configured();
5423         sprintf(buf, "%lu", l);
5424         fio_keywords[2].replace = strdup(buf);
5425 }
5426
5427 #define BC_APP          "bc"
5428
5429 static char *bc_calc(char *str)
5430 {
5431         char buf[128], *tmp;
5432         FILE *f;
5433         int ret;
5434
5435         /*
5436          * No math, just return string
5437          */
5438         if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
5439              !strchr(str, '/')) || strchr(str, '\''))
5440                 return str;
5441
5442         /*
5443          * Split option from value, we only need to calculate the value
5444          */
5445         tmp = strchr(str, '=');
5446         if (!tmp)
5447                 return str;
5448
5449         tmp++;
5450
5451         /*
5452          * Prevent buffer overflows; such a case isn't reasonable anyway
5453          */
5454         if (strlen(str) >= 128 || strlen(tmp) > 100)
5455                 return str;
5456
5457         sprintf(buf, "which %s > /dev/null", BC_APP);
5458         if (system(buf)) {
5459                 log_err("fio: bc is needed for performing math\n");
5460                 return NULL;
5461         }
5462
5463         sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
5464         f = popen(buf, "r");
5465         if (!f)
5466                 return NULL;
5467
5468         ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
5469         if (ret <= 0) {
5470                 pclose(f);
5471                 return NULL;
5472         }
5473
5474         pclose(f);
5475         buf[(tmp - str) + ret - 1] = '\0';
5476         memcpy(buf, str, tmp - str);
5477         free(str);
5478         return strdup(buf);
5479 }
5480
5481 /*
5482  * Return a copy of the input string with substrings of the form ${VARNAME}
5483  * substituted with the value of the environment variable VARNAME.  The
5484  * substitution always occurs, even if VARNAME is empty or the corresponding
5485  * environment variable undefined.
5486  */
5487 char *fio_option_dup_subs(const char *opt)
5488 {
5489         char out[OPT_LEN_MAX+1];
5490         char in[OPT_LEN_MAX+1];
5491         char *outptr = out;
5492         char *inptr = in;
5493         char *ch1, *ch2, *env;
5494         ssize_t nchr = OPT_LEN_MAX;
5495         size_t envlen;
5496
5497         if (strlen(opt) + 1 > OPT_LEN_MAX) {
5498                 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
5499                 return NULL;
5500         }
5501
5502         snprintf(in, sizeof(in), "%s", opt);
5503
5504         while (*inptr && nchr > 0) {
5505                 if (inptr[0] == '$' && inptr[1] == '{') {
5506                         ch2 = strchr(inptr, '}');
5507                         if (ch2 && inptr+1 < ch2) {
5508                                 ch1 = inptr+2;
5509                                 inptr = ch2+1;
5510                                 *ch2 = '\0';
5511
5512                                 env = getenv(ch1);
5513                                 if (env) {
5514                                         envlen = strlen(env);
5515                                         if (envlen <= nchr) {
5516                                                 memcpy(outptr, env, envlen);
5517                                                 outptr += envlen;
5518                                                 nchr -= envlen;
5519                                         }
5520                                 }
5521
5522                                 continue;
5523                         }
5524                 }
5525
5526                 *outptr++ = *inptr++;
5527                 --nchr;
5528         }
5529
5530         *outptr = '\0';
5531         return strdup(out);
5532 }
5533
5534 /*
5535  * Look for reserved variable names and replace them with real values
5536  */
5537 static char *fio_keyword_replace(char *opt)
5538 {
5539         char *s;
5540         int i;
5541         int docalc = 0;
5542
5543         for (i = 0; fio_keywords[i].word != NULL; i++) {
5544                 struct fio_keyword *kw = &fio_keywords[i];
5545
5546                 while ((s = strstr(opt, kw->word)) != NULL) {
5547                         char *new = calloc(strlen(opt) + 1, 1);
5548                         char *o_org = opt;
5549                         int olen = s - opt;
5550                         int len;
5551
5552                         /*
5553                          * Copy part of the string before the keyword and
5554                          * sprintf() the replacement after it.
5555                          */
5556                         memcpy(new, opt, olen);
5557                         len = sprintf(new + olen, "%s", kw->replace);
5558
5559                         /*
5560                          * If there's more in the original string, copy that
5561                          * in too
5562                          */
5563                         opt += olen + strlen(kw->word);
5564                         /* keeps final zero thanks to calloc */
5565                         if (strlen(opt))
5566                                 memcpy(new + olen + len, opt, strlen(opt));
5567
5568                         /*
5569                          * replace opt and free the old opt
5570                          */
5571                         opt = new;
5572                         free(o_org);
5573
5574                         docalc = 1;
5575                 }
5576         }
5577
5578         /*
5579          * Check for potential math and invoke bc, if possible
5580          */
5581         if (docalc)
5582                 opt = bc_calc(opt);
5583
5584         return opt;
5585 }
5586
5587 static char **dup_and_sub_options(char **opts, int num_opts)
5588 {
5589         int i;
5590         char **opts_copy = malloc(num_opts * sizeof(*opts));
5591         for (i = 0; i < num_opts; i++) {
5592                 opts_copy[i] = fio_option_dup_subs(opts[i]);
5593                 if (!opts_copy[i])
5594                         continue;
5595                 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
5596         }
5597         return opts_copy;
5598 }
5599
5600 static void show_closest_option(const char *opt)
5601 {
5602         int best_option, best_distance;
5603         int i, distance;
5604         char *name;
5605
5606         if (!strlen(opt))
5607                 return;
5608
5609         name = strdup(opt);
5610         i = 0;
5611         while (name[i] != '\0' && name[i] != '=')
5612                 i++;
5613         name[i] = '\0';
5614
5615         best_option = -1;
5616         best_distance = INT_MAX;
5617         i = 0;
5618         while (fio_options[i].name) {
5619                 distance = string_distance(name, fio_options[i].name);
5620                 if (distance < best_distance) {
5621                         best_distance = distance;
5622                         best_option = i;
5623                 }
5624                 i++;
5625         }
5626
5627         if (best_option != -1 && string_distance_ok(name, best_distance) &&
5628             fio_options[best_option].type != FIO_OPT_UNSUPPORTED)
5629                 log_err("Did you mean %s?\n", fio_options[best_option].name);
5630
5631         free(name);
5632 }
5633
5634 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
5635 {
5636         int i, ret, unknown;
5637         char **opts_copy;
5638
5639         sort_options(opts, fio_options, num_opts);
5640         opts_copy = dup_and_sub_options(opts, num_opts);
5641
5642         for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
5643                 const struct fio_option *o;
5644                 int newret = parse_option(opts_copy[i], opts[i], fio_options,
5645                                                 &o, &td->o, &td->opt_list);
5646
5647                 if (!newret && o)
5648                         fio_option_mark_set(&td->o, o);
5649
5650                 if (opts_copy[i]) {
5651                         if (newret && !o) {
5652                                 unknown++;
5653                                 continue;
5654                         }
5655                         free(opts_copy[i]);
5656                         opts_copy[i] = NULL;
5657                 }
5658
5659                 ret |= newret;
5660         }
5661
5662         if (unknown) {
5663                 ret |= ioengine_load(td);
5664                 if (td->eo) {
5665                         sort_options(opts_copy, td->io_ops->options, num_opts);
5666                         opts = opts_copy;
5667                 }
5668                 for (i = 0; i < num_opts; i++) {
5669                         const struct fio_option *o = NULL;
5670                         int newret = 1;
5671
5672                         if (!opts_copy[i])
5673                                 continue;
5674
5675                         if (td->eo)
5676                                 newret = parse_option(opts_copy[i], opts[i],
5677                                                       td->io_ops->options, &o,
5678                                                       td->eo, &td->opt_list);
5679
5680                         ret |= newret;
5681                         if (!o) {
5682                                 log_err("Bad option <%s>\n", opts[i]);
5683                                 show_closest_option(opts[i]);
5684                         }
5685                         free(opts_copy[i]);
5686                         opts_copy[i] = NULL;
5687                 }
5688         }
5689
5690         free(opts_copy);
5691         return ret;
5692 }
5693
5694 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
5695 {
5696         int ret;
5697
5698         ret = parse_cmd_option(opt, val, fio_options, &td->o, &td->opt_list);
5699         if (!ret) {
5700                 const struct fio_option *o;
5701
5702                 o = find_option_c(fio_options, opt);
5703                 if (o)
5704                         fio_option_mark_set(&td->o, o);
5705         }
5706
5707         return ret;
5708 }
5709
5710 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
5711                                 char *val)
5712 {
5713         return parse_cmd_option(opt, val, td->io_ops->options, td->eo,
5714                                         &td->opt_list);
5715 }
5716
5717 void fio_fill_default_options(struct thread_data *td)
5718 {
5719         td->o.magic = OPT_MAGIC;
5720         fill_default_options(&td->o, fio_options);
5721 }
5722
5723 int fio_show_option_help(const char *opt)
5724 {
5725         return show_cmd_help(fio_options, opt);
5726 }
5727
5728 /*
5729  * dupe FIO_OPT_STR_STORE options
5730  */
5731 void fio_options_mem_dupe(struct thread_data *td)
5732 {
5733         options_mem_dupe(fio_options, &td->o);
5734
5735         if (td->eo && td->io_ops) {
5736                 void *oldeo = td->eo;
5737
5738                 td->eo = malloc(td->io_ops->option_struct_size);
5739                 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
5740                 options_mem_dupe(td->io_ops->options, td->eo);
5741         }
5742 }
5743
5744 unsigned int fio_get_kb_base(void *data)
5745 {
5746         struct thread_data *td = cb_data_to_td(data);
5747         struct thread_options *o = &td->o;
5748         unsigned int kb_base = 0;
5749
5750         /*
5751          * This is a hack... For private options, *data is not holding
5752          * a pointer to the thread_options, but to private data. This means
5753          * we can't safely dereference it, but magic is first so mem wise
5754          * it is valid. But this also means that if the job first sets
5755          * kb_base and expects that to be honored by private options,
5756          * it will be disappointed. We will return the global default
5757          * for this.
5758          */
5759         if (o && o->magic == OPT_MAGIC)
5760                 kb_base = o->kb_base;
5761         if (!kb_base)
5762                 kb_base = 1024;
5763
5764         return kb_base;
5765 }
5766
5767 int add_option(const struct fio_option *o)
5768 {
5769         struct fio_option *__o;
5770         int opt_index = 0;
5771
5772         __o = fio_options;
5773         while (__o->name) {
5774                 opt_index++;
5775                 __o++;
5776         }
5777
5778         if (opt_index + 1 == FIO_MAX_OPTS) {
5779                 log_err("fio: FIO_MAX_OPTS is too small\n");
5780                 return 1;
5781         }
5782
5783         memcpy(&fio_options[opt_index], o, sizeof(*o));
5784         fio_options[opt_index + 1].name = NULL;
5785         return 0;
5786 }
5787
5788 void invalidate_profile_options(const char *prof_name)
5789 {
5790         struct fio_option *o;
5791
5792         o = fio_options;
5793         while (o->name) {
5794                 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
5795                         o->type = FIO_OPT_INVALID;
5796                         o->prof_name = NULL;
5797                 }
5798                 o++;
5799         }
5800 }
5801
5802 void add_opt_posval(const char *optname, const char *ival, const char *help)
5803 {
5804         struct fio_option *o;
5805         unsigned int i;
5806
5807         o = find_option(fio_options, optname);
5808         if (!o)
5809                 return;
5810
5811         for (i = 0; i < PARSE_MAX_VP; i++) {
5812                 if (o->posval[i].ival)
5813                         continue;
5814
5815                 o->posval[i].ival = ival;
5816                 o->posval[i].help = help;
5817                 break;
5818         }
5819 }
5820
5821 void del_opt_posval(const char *optname, const char *ival)
5822 {
5823         struct fio_option *o;
5824         unsigned int i;
5825
5826         o = find_option(fio_options, optname);
5827         if (!o)
5828                 return;
5829
5830         for (i = 0; i < PARSE_MAX_VP; i++) {
5831                 if (!o->posval[i].ival)
5832                         continue;
5833                 if (strcmp(o->posval[i].ival, ival))
5834                         continue;
5835
5836                 o->posval[i].ival = NULL;
5837                 o->posval[i].help = NULL;
5838         }
5839 }
5840
5841 void fio_options_free(struct thread_data *td)
5842 {
5843         options_free(fio_options, &td->o);
5844         if (td->eo && td->io_ops && td->io_ops->options) {
5845                 options_free(td->io_ops->options, td->eo);
5846                 free(td->eo);
5847                 td->eo = NULL;
5848         }
5849 }
5850
5851 void fio_dump_options_free(struct thread_data *td)
5852 {
5853         while (!flist_empty(&td->opt_list)) {
5854                 struct print_option *p;
5855
5856                 p = flist_first_entry(&td->opt_list, struct print_option, list);
5857                 flist_del_init(&p->list);
5858                 free(p->name);
5859                 free(p->value);
5860                 free(p);
5861         }
5862 }
5863
5864 struct fio_option *fio_option_find(const char *name)
5865 {
5866         return find_option(fio_options, name);
5867 }
5868
5869 static struct fio_option *find_next_opt(struct fio_option *from,
5870                                         unsigned int off1)
5871 {
5872         struct fio_option *opt;
5873
5874         if (!from)
5875                 from = &fio_options[0];
5876         else
5877                 from++;
5878
5879         opt = NULL;
5880         do {
5881                 if (off1 == from->off1) {
5882                         opt = from;
5883                         break;
5884                 }
5885                 from++;
5886         } while (from->name);
5887
5888         return opt;
5889 }
5890
5891 static int opt_is_set(struct thread_options *o, struct fio_option *opt)
5892 {
5893         unsigned int opt_off, index, offset;
5894
5895         opt_off = opt - &fio_options[0];
5896         index = opt_off / (8 * sizeof(uint64_t));
5897         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5898         return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
5899 }
5900
5901 bool __fio_option_is_set(struct thread_options *o, unsigned int off1)
5902 {
5903         struct fio_option *opt, *next;
5904
5905         next = NULL;
5906         while ((opt = find_next_opt(next, off1)) != NULL) {
5907                 if (opt_is_set(o, opt))
5908                         return true;
5909
5910                 next = opt;
5911         }
5912
5913         return false;
5914 }
5915
5916 void fio_option_mark_set(struct thread_options *o, const struct fio_option *opt)
5917 {
5918         unsigned int opt_off, index, offset;
5919
5920         opt_off = opt - &fio_options[0];
5921         index = opt_off / (8 * sizeof(uint64_t));
5922         offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
5923         o->set_options[index] |= (uint64_t)1 << offset;
5924 }